Notes 
Onion Browser is a free, open-source web browser that connects to the Tor network on iOS. There are certain anonymity-related issues with Onion Browser due to iOS platform limitations, so it is best treated as a convenient option rather than a full Tor Browser replacement. See the about page for details.
Reviewed by Marco Wollank
Onion Browser
onionbrowser.com 4.3 (6)
Rate Onion Browser: No account needed
Threat level
Targeted
A targeted-tier tool. Built for a real, capable adversary. Overkill for everyone below. Threat levels
Our take
On iOS this is effectively your only real route onto the Tor network, which is reason enough for it to exist. Be clear-eyed about the caveat the blurb hints at: Apple forces every browser onto WebKit, so it cannot match the real Tor Browser’s anonymity protections and certain leaks are unavoidable. Use it for casual access to onion services or light anonymity on an iPhone; for a serious threat model, do that work on a desktop with Tor Browser instead.
GitHub at a glance
OnionBrowser/OnionBrowser anonymitybrowseriosmobilemplobjective-conionprivacysecuritytortor-networkweb-browser
Stars
2,704
+1 this week
Forks
548
175 watching
Last commit
1d ago
healthy
Latest release
v3.4.5
4d ago, 67 total
Star history
Issues
99% closed
6
open
537
closed
+4 / -5
opened / closed, last 4 weeks
Opened vs closed, last 12 weeks
Commits, last 26 weeks
54 commits, active 14 of 26 weeks
18 contributors since Feb 2012
Languages
- Swift 89.1%
- HTML 5.6%
- Objective-C 2.9%
- Other 2.4%
Updated daily from the GitHub API. Star tracking since Jun 15, 2026.
Website at a glance
onionbrowser.com
F score 5
Weak website security headers
Graded by Mozilla HTTP Observatory, tested 1d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
Onion Browser alternatives
LibreWolf A modified version of Firefox designed to increase protection against tracking and fingerprinting techniques, while also including security improvements.
Brave Fast, cross-platform Chromium browser that blocks ads and trackers by default. A complete package out of the box, suitable for beginners or when setup time matters.
Helium Privacy-first Chromium browser with uBlock Origin and tracker blocking on by default. Based on ungoogled-chromium, for Windows, macOS, and Linux.
Firefox Reliable, fast and privacy-friendly. Harden it with add-ons, enable DNS-over-HTTPS, and sync across all your devices.
Firefox Focus Dedicated mobile privacy browser with automatic tracking protection and ad blocking. With Focus, your pages load faster and your data stays private.
DuckDuckGo Privacy-focused search engine and mobile browser that blocks trackers and searches without profiling you. Partially open source, based in the US.