AI extension for Opera

Opera's own extensions help says Opera is based on Chromium, which is why Chrome extension files run in it (Opera extensions help). Copilotly therefore points Opera at the same listing as Chrome.

The helper add-on step is required, per Opera's help. If an install stalls, some users report retrying or reinstalling the helper, but that comes from forums, not official guidance.

• Chat in the sidebar with the open page, YouTube videos and files, with cited web search. Web search.
• Rewrite selected text anywhere, with undo and a comparison. Rewrite anywhere.
• Bilingual whole-page translation. Page translation.
• Model choice across GPT, Claude, Gemini and others.

Opera has its own built-in AI, Aria. Copilotly is separate and independent of it.

MDN's compatibility data lists Opera's speech recognition support as matching Chrome's, so dictation in Copilotly should be available in Opera, subject to microphone permission and a connection. See dictation.

Free has daily limits; Pro is $6.99/week, $19.99/month or $149.99/year, with a 7-day free trial for first-time subscribers. See free and pricing.

1. Keep it reachable. Manage Copilotly from Opera's extensions page (Ctrl+Shift+E on Windows and Linux, Cmd+Shift+E on macOS) and use Alt+C for the sidebar.
2. Use the shortcut. Alt+C opens the sidebar; if Opera's own shortcuts collide, change one in Opera's keyboard shortcut settings.
3. Select and rewrite. Select a sentence on any site, choose tone and length, and use the diff to approve changes.
4. Translate a page. Right-click, "Translate this page", and read the original beside it.

Two settings change how well answers fit you. Custom instructions and memory let you tell the assistant who you are and how you like answers, so you stop repeating yourself (see memory and personalization). My Voice learns your writing style, so rewrites sound like you rather than like a generic assistant.

Opera users sometimes ask whether to use the built-in Aria or an extension. They are different tools: use whichever answers your question better, or try the same prompt in both. Copilotly's strength is choosing among many models; our ChatGPT and Gemini pages cover what is on offer.

This is the step that most often goes wrong in Opera. Make sure you are using the Chrome Web Store listing and that Opera is up to date. Install Opera's Install Chrome extensions add-on first if you have not, then try again from the listing. If the button sticks, close the tab, reopen the listing and retry; failing that, the same Chrome-store route is described in Opera's extensions help.

If it still will not install, the web app at app.copilotly.com gives you the chat features in Opera without any extension, and you can use the extension in Chrome or Firefox for in-page rewriting.

They are different tools

Aria is Opera's built-in assistant. Copilotly is independent of it. Neither replaces the other.

Why you might add Copilotly

Choice of models, in-page rewriting with undo and a bilingual page view. The page translation and rewrite anywhere pages explain both.

What does it cost?

Free to start with daily limits (free plan). Pro is $6.99/week, $19.99/month or $149.99/year, with a 7-day free trial for first-time subscribers. See pricing.

Precautions from Opera

Opera's help advises reading reviews before installing extensions and keeping only the ones you use, since some use a lot of processing power. That applies to any extension, ours included.

Copilotly runs as a desktop extension in Chrome, Edge, Firefox, Brave and Opera. Arc and Vivaldi also install the Chrome Web Store build. Safari is the exception: no Safari build is published, so the Safari page covers what to use instead.

How was the dictation column checked?

Dictation uses the browser's built-in speech recognition, so it follows the browser, not Copilotly. We took the support data from MDN's SpeechRecognition page. MDN also notes that in browsers such as Chrome the audio goes to a web service for recognition, so it will not work offline. Brave is marked "not verified" because we have not tested it. Rewrite, translation and chat do not depend on speech recognition.

What about phones and tablets?

Desktop extensions do not run in mobile browsers in general. On a phone, use the iOS or Android app, which works on the free plan. Everything is listed on the download page.

Limits belong to your account, so they are the same in the extension, the web app and the mobile apps. Free covers fast models within a token allowance, plus these daily allowances:

What does Pro cost?

Pro is $6.99/week, $19.99/month or $149.99/year, with a 7-day free trial for first-time subscribers. Compare plans on the pricing page.

Do my own API keys count against these limits?

No. Requests on your own key are never metered by Copilotly; see bring your own key.

The same account works everywhere, but the surfaces are not identical.

Rows marked No for the web app and mobile reflect that those features act on the browser page you are viewing. If you rely on them, the extension in Chrome, Edge or Firefox is what you need. For the rest, see all features.

Which shortcuts and menus matter?

• Alt+C opens the sidebar widget.
• Select text to show the rewrite toolbar; Cmd/Ctrl+K opens its command menu.
• Right-click selected text for the context menu, or right-click a page and choose Translate this page.
• Undo and versions restore earlier wording after a rewrite.

How do I turn it off or remove it?

Open Opera's extensions page (Ctrl+Shift+E on Windows and Linux, Cmd+Shift+E on macOS), find Copilotly and turn it off or remove it.

Where does my text go?

Content you ask about, including selected text, is sent to the AI model you choose, so avoid using it on anything you would not paste into an online service. Incognito chats are available in the product.

Ask the same prompt twice

Run a question in one model, switch the picker and run it again. A GPT answer and a Claude answer often differ in wording and sometimes in substance, so a second opinion is cheaper than finding the mistake later. Neither is right every time.

Match the model to the job

Use a fast model for quick lookups and small edits, and a premium model when a question needs careful reasoning. Free accounts get 10 premium-model messages a day, so spend them on the questions that matter. Our professional-work comparison is a good starting point.

Check what matters

For anything you will send, publish or act on, read the result and verify the facts and numbers against the original source. Turn on web search when you need cited sources, then open the citations.

Be specific about tone and length

The rewrite toolbar has tone and length pickers. "Friendlier, shorter" is a clearer instruction than a bare rewrite, and you can run it again with a different setting. See rewrite anywhere.

Read the word-level diff

The comparison shows exactly what changed against your original. Approve the parts you like, use undo for the rest, and check that names, dates and numbers are untouched.

Teach it your style

My Voice learns your writing style, and custom instructions and memory tell the assistant who you are and how you like answers. Both are covered in memory and personalization. For a one-off reword with no setup, the free paraphrasing tool works without an account.

Ask specific questions

"What does the author claim, and where is the evidence?" works better than "summarize". Ask for quotes or section names so you can check them against the page.

Work in steps on long pages

Ask for an outline first, then dig into one section. For documents, upload the PDF, Word, Excel or CSV file instead and use chat with PDF. On video pages, ask for a summary and follow up on the part you care about; see YouTube summaries.

Know what leaves the page

Only ask about pages you are comfortable sending to an AI model. Pages behind a login, such as banking or health portals, are better left alone.

Check your organisation's rules first

Many employers restrict browser extensions or AI tools. Ask your IT or security team before installing it on a work profile. This is general guidance, not legal or compliance advice.

Keep sensitive content out

Selected text and pages you ask about go to the model you choose. Do not use it on confidential client data, credentials or personal records unless your policy allows it. Incognito chats and your own API key give you more control, but they do not change what is sent for a request.

Personal profile, personal use

A separate browser profile for personal use keeps work and personal accounts apart. See pricing for plan details.