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Opera is a multi-platform
web browser A web browser is application software for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's screen. Browsers are used o ...
developed by its namesake company
Opera Opera is a form of theatre in which music is a fundamental component and dramatic roles are taken by singers. Such a "work" (the literal translation of the Italian word "opera") is typically a collaboration between a composer and a libr ...
. The browser is based on
Chromium Chromium is a chemical element with the symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium metal is valued for its high corrosion resistance and hard ...
, but distinguishes itself from other Chromium-based browsers ( Chrome,
Edge Edge or EDGE may refer to: Technology Computing * Edge computing, a network load-balancing system * Edge device, an entry point to a computer network * Adobe Edge, a graphical development application * Microsoft Edge, a web browser developed ...
, etc.) through its
user interface In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine f ...
and other features. Opera was initially released on 10 April 1995, making it one of the oldest desktop web browsers still actively developed. It was
commercial software Commercial software, or seldom payware, is a computer software that is produced for sale or that serves commercial purposes. Commercial software can be proprietary software or free and open-source software. Background and challenge While sof ...
for its first ten years and had its own proprietary layout engine, Presto. In 2013, it switched from the Presto engine to Chromium. Opera is available on
Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for se ...
,
macOS macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and la ...
,
Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, whi ...
, Android, and iOS (Safari WebKit engine). There are also mobile versions called Opera Mobile and Opera Mini. Opera users also have access to Opera News, a news app based on an AI platform. The company released a gaming-oriented version of the browser, Opera GX, in 2019, and a blockchain-focused Opera Crypto Browser into public beta in January 2022.


History

In 1994, Jon Stephenson von Tetzchner and Geir Ivarsøy started developing the Opera web browser while working at
Telenor Telenor ASA ( or ) is a Norwegian majority state-owned multinational telecommunications company headquartered at Fornebu in Bærum, close to Oslo. It is one of the world's largest mobile telecommunications companies with operations worldwi ...
, a Norwegian telecommunications company. In 1995, they founded
Opera Software AS Opera is a Norwegian multinational technology company and subsidiary of Kunlun that specializes in web browser development, fintech, as well as services such as Opera News and YoYo Games. The company's total user base, including users of its ...
. Opera was initially released on 10 April 1995, and then it was released publicly in 1996 with version 2.10, which ran on Microsoft Windows 95. Development for mobile device platforms started in 1998. Opera 4.0, released in 2000, included a new cross-platform core that facilitated the creation of editions of Opera for multiple
operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ef ...
s and platforms. To this point, Opera was
trialware Shareware is a type of proprietary software that is initially shared by the owner for trial use at little or no cost. Often the software has limited functionality or incomplete documentation until the user sends payment to the software developer ...
and had to be purchased after the trial period. With version 5.0, released in 2000, Opera became ad-sponsored, displaying ads to users who had not paid for it. Subsequent versions have given users the choice of seeing
banner ad A web banner or banner ad is a form of advertising on the World Wide Web delivered by an ad server. This form of online advertising entails embedding an advertisement into a web page. It is intended to attract traffic to a website by linking ...
s or targeted text ads from
Google Google LLC () is an American Multinational corporation, multinational technology company focusing on Search Engine, search engine technology, online advertising, cloud computing, software, computer software, quantum computing, e-commerce, ar ...
. With version 8.5, released in 2005, the ads were completely removed, and the browser's primary financial support came through revenue from Google (by contract, Opera's default
search engine A search engine is a software system designed to carry out web searches. They search the World Wide Web in a systematic way for particular information specified in a textual web search query. The search results are generally presented in a ...
). Among new features introduced in version 9.1, released in 2006, was fraud protection using technology from GeoTrust, a digital certificate provider, and
PhishTank PhishTank is an anti-phishing site. PhishTank was launched in October 2006 by entrepreneur David Ulevitch as an offshoot of OpenDNS. The company offers a community-based phish verification system where users submit suspected phishes and other us ...
, an organization that tracks known
phishing Phishing is a type of social engineering where an attacker sends a fraudulent (e.g., spoofed, fake, or otherwise deceptive) message designed to trick a person into revealing sensitive information to the attacker or to deploy malicious softwa ...
web sites. This feature was further expanded in version 9.5, when GeoTrust was replaced with
Netcraft Netcraft is an Internet services company based in Bath, Somerset, England. The company provides cybercrime disruption services across a range of industries. History Netcraft was founded by Mike Prettejohn. The company provides web server and ...
, and malware protection from Haute Secure was added. In 2006, Opera Software ASA was released as well as Internet Channel and
Nintendo DS Browser The is a handheld game console produced by Nintendo, released globally across 2004 and 2005. The DS, an initialism for "Developers' System" or "Dual Screen", introduced distinctive new features to handheld games: two LCD screens working in tan ...
for Nintendo's DS and
Wii The Wii ( ) is a home video game console developed and marketed by Nintendo. It was released on November 19, 2006, in North America and in December 2006 for most other regions of the world. It is Nintendo's fifth major home game console, ...
gaming systems. A new
JavaScript JavaScript (), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. As of 2022, 98% of websites use JavaScript on the client side for webpage behavior, of ...
engine, called Carakan (after the
Javanese alphabet The Javanese script (natively known as ''Aksara Jawa'', ''Hanacaraka'', ''Carakan'', and ''Dentawyanjana'') is one of Indonesia's traditional scripts developed on the island of Java. The script is primarily used to write the Javanese langu ...
), was introduced with version 10.50. According to Opera Software, it made Opera 10.50 more than seven times faster in SunSpider than Opera 10.10. On 16 December 2010, Opera 11 was released, featuring
extensions Extension, extend or extended may refer to: Mathematics Logic or set theory * Axiom of extensionality * Extensible cardinal * Extension (model theory) * Extension (predicate logic), the set of tuples of values that satisfy the predicate * Ex ...
, tab stacking (where dragging one tab over another allowed creating a group of tabs), visual mouse gestures and changes to the address bar. Opera 12 was released on 14 June 2012. On 12 February 2013, Opera Software announced that it would drop its own Presto layout engine in favour of
WebKit WebKit is a browser engine developed by Apple and primarily used in its Safari web browser, as well as on the iOS and iPadOS version of any web browser. WebKit is also used by the BlackBerry Browser, PlayStation consoles beginning from the ...
as implemented by Google's Chrome browser, using code from the
Chromium Chromium is a chemical element with the symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium metal is valued for its high corrosion resistance and hard ...
project. Opera Software planned as well to contribute code to WebKit. On 3 April 2013, Google announced it would fork components from WebKit to form a new layout engine,
Blink Blinking is a bodily function; it is a semi-autonomic rapid closing of the eyelid. A single blink is determined by the forceful closing of the eyelid or inactivation of the levator palpebrae superioris and the activation of the palpebral portio ...
. That day, Opera Software confirmed it would follow Google in implementing Blink. On 28 May 2013, a beta release of Opera 15 was made available, the first version based on the Chromium project. Many distinctive Opera features of the previous versions were dropped, and
Opera Mail Opera Mail (formerly known as M2) is the email and news client developed by Opera Software. It was an integrated component within the Opera web browser from version 2 through 12. With the release of Opera 15 in 2013, Opera Mail became a separ ...
was separated into a standalone application derived from Opera 12.


Acquisition by Chinese consortium

In 2016, the company changed ownership when a group of Chinese investors purchased the web browser, the consumer business, and the Opera Software ASA brand. On 18 July 2016, Opera Software ASA announced it had sold its browser, privacy and performance apps, and the Opera brand to Golden Brick Capital Private Equity Fund I Limited Partnership, a consortium of Chinese investors. In January 2017, the source code of Opera 12.15, one of the last few versions still based on the Presto layout engine, was leaked. To demonstrate how radically different a browser could look, Opera Neon, dubbed a "concept browser," was released in January 2017. ''
PC World ''PC World'' (stylized as PCWorld) is a global computer magazine published monthly by IDG. Since 2013, it has been an online only publication. It offers advice on various aspects of PCs and related items, the Internet, and other personal tech ...
'' compared it to demo models that automakers and hardware vendors release to show their visions of the future. Instead of a Speed Dial (also explained in the following chapter, "Features"), it displays the frequently accessed websites in resemblance to a desktop with computer icons scattered over it in an artistic formation.


Features

Opera has originated features later adopted by other web browsers, including: Speed Dial, pop-up blocking, reopening recently closed pages,
private browsing Private browsing is a privacy feature in some web browsers. When operating in such a mode, the browser creates a temporary session that is isolated from the browser's main session and user data. Browsing history is not saved, and local data as ...
, and tabbed browsing. Additional features include a built-in screenshot tool, Snapshot, which also includes an image-markup tool; built-in ad blockers, and tracking blockers.


Built-in messengers

Opera’s desktop browser includes access to social media messaging apps
WhatsApp WhatsApp (also called WhatsApp Messenger) is an internationally available freeware, cross-platform, centralized instant messaging (IM) and voice-over-IP (VoIP) service owned by American company Meta Platforms (formerly Facebook). It allows use ...
,
Telegram Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas ...
,
Facebook Messenger Messenger is a proprietary instant messaging app and platform developed by Meta Platforms. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, released standalone iOS and Android apps in 2011, and ...
,
Twitter Twitter is an online social media and social networking service owned and operated by American company Twitter, Inc., on which users post and interact with 280-character-long messages known as "tweets". Registered users can post, like, and ...
,
Instagram Instagram is a photo and video sharing social networking service owned by American company Meta Platforms. The app allows users to upload media that can be edited with filters and organized by hashtags and geographical tagging. Posts can ...
,
TikTok TikTok, known in China as Douyin (), is a short-form video hosting service owned by the Chinese company ByteDance. It hosts user-submitted videos, which can range in duration from 15 seconds to 10 minutes. TikTok is an international version o ...
, and VK.


Usability and accessibility

Opera includes a bookmarks bar and a
download manager A download manager is a software tool that manages the downloading of files from the Internet, which may be built: into a Web browser, or as a, usually more sophisticated program Program, programme, programmer, or programming may refer to: ...
. It also has "Speed Dial" which allows the user to add an unlimited number of pages shown in
thumbnail Thumbnails are reduced-size versions of pictures or videos, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. In the age of digital images, visual search engines and imag ...
form in a page displayed when a new tab is opened. Opera was one of the first browsers to support
Cascading Style Sheets Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML). CSS is a cornerstone tec ...
(CSS) in 1998. Opera Turbo, a feature that compresses requested web pages (except HTTPS pages) before sending them to the users, is no longer available on the desktop browser. Opera Turbo is available in Opera Mini, the mobile browser.


Privacy and security

One security feature is the option to delete private data, such as
HTTP cookie HTTP cookies (also called web cookies, Internet cookies, browser cookies, or simply cookies) are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's ...
s, browsing history, items in cache and passwords with the click of a button. When visiting a site, Opera displays a security badge in the address bar which shows details about the website, including security certificates. Opera's
fraud In law, fraud is intentional deception to secure unfair or unlawful gain, or to deprive a victim of a legal right. Fraud can violate civil law (e.g., a fraud victim may sue the fraud perpetrator to avoid the fraud or recover monetary compen ...
and
malware Malware (a portmanteau for ''malicious software'') is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, depr ...
protection warns the user about suspicious web pages and is enabled by default. It checks the requested page against several databases of known
phishing Phishing is a type of social engineering where an attacker sends a fraudulent (e.g., spoofed, fake, or otherwise deceptive) message designed to trick a person into revealing sensitive information to the attacker or to deploy malicious softwa ...
and malware websites, called blacklists. In 2016, a free virtual private network (VPN) service was implemented in the browser. Opera said that this would allow encrypted access to websites otherwise blocked, and provide security on public WiFi networks. It was later determined that the browser VPN operated as a web proxy rather than a VPN, meaning that it only secured connections made by the browser and not by any other apps on the computer.


Crypto wallet support

In 2018, a built-in
cryptocurrency wallet A cryptocurrency wallet is a device, physical medium, program or a service which stores the public and/or private keys for cryptocurrency transactions. In addition to this basic function of storing the keys, a cryptocurrency wallet more often al ...
to the Opera Web Browser was released, announcing that they would be the first browser with a built-in Crypto Wallet. On 13 December 2018, Opera released a video showing many decentralized applications like Cryptokitties running on the Android version of the Opera Web Browser. In March 2020, Opera updated its Android browser to access crypto domains, making it the first browser to be able to support a
domain name system The Domain Name System (DNS) is a hierarchical and distributed naming system for computers, services, and other resources in the Internet or other Internet Protocol (IP) networks. It associates various information with domain names assigned t ...
(DNS) which is not part of the traditional DNS directly without the need of a plugin or add-on. This was through a collaboration with a
San Francisco San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17t ...
based startup, Unstoppable Domains. In January 2022, Opera introduced Opera Crypto Browser into public beta, combining a non-custodial wallet with a dedicated browser for blockchain enabled services and Web3 technologies. On April 14 2022, Opera launched its Crypto Browser available on iOS devices.


Other versions


Opera GX

Opera GX is a gaming-oriented counterpart of Opera. The browser was announced and released in early access for Windows on 11 June 2019, during
E3 2019 The Electronic Entertainment Expo 2019 (E3 2019) was the 25th E3, during which hardware manufacturers, software developers, and publishers from the video game industry presented new and upcoming products to the attendees, primarily retailers a ...
. The macOS version was released in December of the same year. Opera GX adds features geared towards gamers on top of the regular Opera browser. The browser allows users to limit network, CPU, and memory usage to preserve system resources, with GX Cleaner, a tool that allows users to clear cache, cookies, and other junk. It also adds integrations with other apps such as Twitch, Discord,
Twitter Twitter is an online social media and social networking service owned and operated by American company Twitter, Inc., on which users post and interact with 280-character-long messages known as "tweets". Registered users can post, like, and ...
, and
Instagram Instagram is a photo and video sharing social networking service owned by American company Meta Platforms. The app allows users to upload media that can be edited with filters and organized by hashtags and geographical tagging. Posts can ...
. The browser also has a built-in page called the GX Corner, which collates gaming-related releases, deals, and news articles. On 20 May 2021, Opera released a mobile version of Opera GX on iOS and Android.


Development stages

Opera Software uses a release cycle consisting of three "streams," corresponding to phases of development, that can be downloaded and installed independently of each other: "developer," "beta," and "stable." New features are first introduced in the developer build, then, depending on user feedback, may progress to the
beta version A software release life cycle is the sum of the stages of development and maturity for a piece of computer software ranging from its initial development to its eventual release, and including updated versions of the released version to help impro ...
and eventually be released. The developer stream allows early testing of new features, mainly targeting developers, extension creators, and early adopters. Opera developer is not intended for everyday browsing as it is unstable and is prone to failure or crashing, but it enables advanced users to try out new features that are still under development, without affecting their normal installation of the browser. New versions of the browser are released frequently, generally a few times a week. The beta stream, formerly known as "Opera Next," is a
feature complete A software release life cycle is the sum of the stages of development and maturity for a piece of computer software ranging from its initial development to its eventual release, and including updated versions of the released version to help impr ...
package, allowing stability and quality to mature before the final release. A new version is released every couple of weeks. Both streams can be installed alongside the official release without interference. Each has a different icon to help the user distinguish between the variants.


Market adoption


Integrations

In 2005,
Adobe Systems Adobe Inc. ( ), originally called Adobe Systems Incorporated, is an American multinational computer software company incorporated in Delaware and headquartered in San Jose, California. It has historically specialized in software for the cre ...
integrated Opera's rendering engine, Presto, into its Adobe Creative Suite applications. Opera technology was employed in
Adobe GoLive Adobe GoLive was a WYSIWYG HTML editor and web site management application from Adobe Systems. It replaced Adobe PageMill as Adobe's primary HTML editor and was itself discontinued in favor of Dreamweaver. The last version of GoLive that Adobe r ...
,
Adobe Photoshop Adobe Photoshop is a raster graphics editor developed and published by Adobe Inc. for Windows and macOS. It was originally created in 1988 by Thomas and John Knoll. Since then, the software has become the industry standard not only in rast ...
,
Adobe Dreamweaver Adobe Dreamweaver is a proprietary web development tool from Adobe Inc. It was created by Macromedia in 1997 and developed by them until Macromedia was acquired by Adobe Systems in 2005. Adobe Dreamweaver is available for the macOS and Windo ...
, and other components of the Adobe Creative Suite. Opera's layout engine is also found in Virtual Mechanics SiteSpinner Pro. The Internet Channel is a version of the Opera 9 web browser for use on the Nintendo Wii created by Opera Software and Nintendo. Opera Software is also implemented in the
Nintendo DS Browser The is a handheld game console produced by Nintendo, released globally across 2004 and 2005. The DS, an initialism for "Developers' System" or "Dual Screen", introduced distinctive new features to handheld games: two LCD screens working in tan ...
for Nintendo's handheld systems. Opera is one of the top 5 browsers used around the world. As of April 2021, Opera's offerings had over 320 million active users.


Reception

The Opera browser has been listed as a "tried and tested direct alternative to Chrome." It scores close to Chrome on the HTML5test, which scores browsers’ compatibility with different web standards. Versions with the Presto layout engine have been positively reviewed, although they have been criticized for website compatibility issues. Because of this issue, Opera 8.01 and higher had included workarounds to help certain popular but problematic web sites display properly. Versions with the Blink layout engine have been criticized by some users for missing features such as UI customization, and for abandoning Opera Software's own Presto layout engine. Despite that, versions with the Blink layout engine have been noted for being fast and stable, for handling the latest web standards and for having a better website compatibility and a modern-style user interface.


See also

Opera browser platform variants: * Opera Mini: a browser for tablets and telephones * Opera Mobile: a browser for tablets and telephones Related other browsers: * Otter Browser: an open-source browser that recreates some aspects of the classic Opera *
Vivaldi Antonio Lucio Vivaldi (4 March 1678 – 28 July 1741) was an Italian composer, virtuoso violinist and impresario of Baroque music. Regarded as one of the greatest Baroque composers, Vivaldi's influence during his lifetime was widesprea ...
: a freeware browser created by former Opera Software employees Related topics: * Comparison of browser synchronizers *
History of the web browser A web browser is a software application for retrieving, presenting and traversing information resources on the World Wide Web. It further provides for the capture or input of information which may be returned to the presenting system, then sto ...
*
List of pop-up blocking software This is a list of software that blocks pop-up ads. Browsers that block pop-up ads Trident shells *AOL Explorer *Avant Browser * GreenBrowser *Internet Explorer * Lunascape *Maxthon *MSN Explorer * NeoPlanet *Netcaptor * Netscape 8 *Sleipnir Gec ...
*
List of web browsers The following is a list of web browsers that are notable. Historical Layout engines * Gecko is developed by the Mozilla Foundation. ** Goanna is a fork of Gecko developed by Moonchild Productions. * Servo is an experimental web br ...
*
Timeline of web browsers This is a timeline of web browsers from the early 1990s to the present. Prior to browsers, many technologies and systems existed for information viewing and transmission. For an in-depth history of earlier web browsers, see the web browser article ...


References


External links

* {{DEFAULTSORT:Opera (Web Browser) C++ software Cross-platform web browsers Embedded Linux Freeware OS/2 web browsers MacOS web browsers Pocket PC software Portable software POSIX web browsers Proprietary cross-platform software Proprietary freeware for Linux Science and technology in Norway Software based on WebKit Software companies of Norway Telenor Windows web browsers 1994 software 1995 software Computer-related introductions in 1995 BSD software