Best Free Chrome Extensions (2026)
"Free" on the Chrome Web Store covers everything from genuinely free software to a seven-day trial. This list only includes extensions whose main job works forever without paying, and says where a paid tier exists so nothing surprises you later.
Short answer
The strongest all-free picks: uBlock Origin for blocking, OneTab for tab overload, Dark Reader for night reading, Bitwarden for passwords, GoFullPage for screenshots and Google Translate for foreign pages. None of these paywall the feature you install them for.
How we picked
- • The core feature works permanently without payment
- • No account required just to start using it
- • No trial timer on the reason you installed it
- • Permissions proportionate to the feature set
- • Recently updated on the Chrome Web Store
At a glance
| # | Extension | Best for | Rating | Users | Pricing |
|---|---|---|---|---|---|
| 1 | uBlock Origin | Blocking ads and trackers | 4.7 | 11M+ | Free |
| 2 | OneTab | Tab overload | 4.4 | 2M+ | Free |
| 3 | Dark Reader | Night reading | 4.7 | 7M+ | Free |
| 4 | Bitwarden | Passwords and passkeys | 4.3 | 7M+ | Freemium |
| 5 | Google Translate | Reading foreign pages | 4.3 | 30M+ | Free |
| 6 | JSON Formatter | Reading API responses | 4.3 | 2M+ | Free |
| 7 | Detailed SEO Extension | On-page SEO checks | 4.9 | 600K+ | Free |
| 8 | Privacy Badger | Automatic tracker blocking | 4.5 | 1M+ | Free |
| 9 | ColorZilla | Picking colours from any page | 4.6 | 4M+ | Free |
| 10 | WhatFont | Identifying fonts | 4.0 | 2M+ | Free |
| 11 | Keepa | Amazon price history | 4.7 | 4M+ | Freemium |
Ratings and install counts are synced daily from each extension's Chrome Web Store listing.
1. uBlock Origin
Free and open source with no paid tier and no allowlist programme — the clearest example of free meaning free.
Best for: Blocking ads and trackers
4.7~11M+ usersFree2. OneTab
Collapses every open tab into one list and returns the memory, with no account and no upsell.
Best for: Tab overload
4.4~2M+ usersFree3. Dark Reader
Per-site dark mode with contrast and brightness controls, generated locally in the browser and free to use.
Best for: Night reading
4.7~7M+ usersFree4. Bitwarden
The free tier stores unlimited passwords and syncs across devices; paid plans add sharing and advanced two-factor, not the basics.
Best for: Passwords and passkeys
4.3~7M+ usersFreemium5. Google Translate
Translates selected text or a whole page instantly, from Google and free with no quota to watch.
Best for: Reading foreign pages
4.3~30M+ usersFree6. JSON Formatter
Turns raw JSON in the browser into a collapsible, syntax-highlighted tree — free, open source and tiny.
Best for: Reading API responses
4.3~2M+ usersFree7. Detailed SEO Extension
Titles, headings, canonical, robots directives and schema in one panel, free for the checks most people need.
Best for: On-page SEO checks
4.9~600K+ usersFree8. Privacy Badger
Maintained by the EFF, free by principle, and needs no configuration or lists.
Best for: Automatic tracker blocking
4.5~1M+ usersFree9. ColorZilla
Eyedropper, gradient reader and palette history for free, which is all most design checks require.
Best for: Picking colours from any page
4.6~4M+ usersFree10. WhatFont
Hover any text to see the font family, size and line height — a single free utility that does one job well.
Best for: Identifying fonts
4.0~2M+ usersFree11. Keepa
Full price history charts on product pages for free; only alerts and data exports sit behind a subscription.
Best for: Amazon price history
4.7~4M+ usersFreemium
What to know before choosing
Free on the Chrome Web Store means four different things: free software, a free tier, a free trial, and free-with-ads. This list is limited to the first two, and only where the feature you install the extension for is not the one behind the paywall.
The safest free extensions tend to be open source or funded by something other than you: uBlock Origin and JSON Formatter are community projects, Privacy Badger is funded by the EFF, Google Translate exists to serve Google. None of them need your data to make the model work.
Freemium is fine when the split is honest. Bitwarden syncs unlimited passwords free and charges for sharing; Keepa shows full price history free and charges for alerts. Compare that with tools that let you save five items and then stop — technically free, useless in practice.
Free does have a real cost, and it is permissions. An extension that reads and changes data on every site can, after an ownership change, inject affiliate links or collect browsing history in an update nobody read. Before installing, check the last update date, whether a privacy policy exists, and whether the permission list matches what the extension actually does.
One habit keeps this list working for you: audit chrome://extensions every few months. Disable what you no longer use rather than uninstalling if you may return to it, since each active extension with content scripts costs startup time on every page you open.
Compare the shortlist head-to-head
Narrowed it to two? These side-by-side comparisons settle it with a feature table and a verdict.
Alternatives to the top picks
Frequently asked questions
Are free Chrome extensions safe?
The risk is not the price, it is the permissions and who owns the code. Prefer open-source or non-profit-backed extensions, check the last update date, and be wary of any extension requesting access to all sites for a feature that clearly does not need it.
How do free extensions make money?
Several ways: donations and open-source funding, a paid tier for teams and power users, affiliate revenue on shopping sites, or selling aggregated data. The last is the one to avoid, which is why the privacy policy matters more than the star rating.
What is the difference between free and freemium?
Free software never charges for the core feature; freemium gives you a usable subset and charges for scale, sharing or automation. Both are fine — a trial that expires after seven days is neither, and we exclude those here.
How many extensions can I safely install?
There is no hard limit, but every extension with content scripts runs on the pages you open, so ten active ones can visibly slow browsing. Chrome's Task Manager (Shift+Esc) shows memory and CPU per extension and settles the argument quickly.
Do free extensions work on Edge and Brave?
Almost always, since both are Chromium browsers that install from the Chrome Web Store. Firefox and Safari need separate builds, and not every free extension ships one.