# OnionBrowser/OnionBrowser

An open-source, privacy-enhancing web browser for iOS, utilizing the Tor anonymity network

Repository: https://github.com/OnionBrowser/OnionBrowser
Canonical: https://ross.abutalabs.com/products/onionbrowser
Homepage: https://onionbrowser.com
Language: Swift
License: NOASSERTION
License Family: other
Topics: anonymity, browser, ios, privacy, security, tor, tor-network, web-browser, onion, mobile, objective-c, mpl
Last push: 2026-08-11T16:26:21+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 97, release rhythm 97, longevity 100
- inputs: {"age_days": 5304, "days_push": 22, "days_rel": 22, "gap_med": 26, "n_releases_24m": 20}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2663, forks 536 (observed 2026-08-28T04:07:08.951379+00:00)

## What it is
Onion Browser is a free, open-source privacy-focused web browser for iPhone and iPad that tunnels web traffic through the Tor anonymity network, using Orbot iOS for connectivity. It offers per-site security settings, access to onion sites, and protection from tracking and network surveillance.

## Use cases
- browse the web anonymously on iPhone
- access .onion sites on iOS
- hide my IP address while browsing on iPad
- bypass censorship and network restrictions on iOS
- prevent ISP and WiFi operators from seeing my browsing
- block third-party trackers on mobile Safari alternative
- use Tor on iPhone without jailbreaking

## When to choose
- you need Tor-based anonymous browsing on iOS
- you want an open-source, auditable mobile browser
- you need to reach onion sites or circumvent censorship on iPhone/iPad

## When to avoid
- you need a hardened Tor browser with a custom Gecko engine like on desktop or Android
- you need device-wide Tor tunneling rather than in-app browsing (use Orbot)
- you expect guaranteed anonymity - iOS WebKit limitations reduce protection

## Facets
- artifact type: application
- maturity: active
- function: security, privacy, vpn
- domain: privacy, security, browser-extensions, mobile-development, censorship-circumvention
- platform: -
- tags: tor, onion-browser, anonymity, web-browser, orbot, anti-tracking, open-source-browser, censorship-circumvention, ios, mobile, swift

## Member repositories
- OnionBrowser/OnionBrowser (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:08.951379+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:18:19.948628+00:00, confidence not recorded.
  - readme: https://github.com/OnionBrowser/OnionBrowser (fetched 2026-08-28T04:07:08.951379+00:00, sha c8b496ed20f9)
  - homepage: https://onionbrowser.com (fetched 2026-08-29T10:01:03.733258+00:00, sha 7a0df569c327)
  - site_page: https://onionbrowser.com/about (fetched 2026-08-29T10:01:03.735653+00:00, sha ff34e8f410c4)
  - site_page: https://onionbrowser.com/faqs (fetched 2026-08-29T10:01:03.737509+00:00, sha 3d877c8ffa02)
- Data as of 2026-08-30T08:39:29.467469+00:00.