Source: https://seerepo.com/compare/mozilla-mobile/firefox-ios/vs/onyx-dot-app/onyx
Markdown source: https://seerepo.com/compare/mozilla-mobile/firefox-ios/vs/onyx-dot-app/onyx.md
Description: firefox-ios and onyx share 7 technologies: Sentry, Rich, jinja2, markdown-it-py, markupsafe, mdurl, and dompurify. firefox-ios is written in Swift and onyx in Python.

# firefox-ios vs onyx

firefox-ios and onyx share 7 technologies: Sentry, Rich, jinja2, markdown-it-py, markupsafe, mdurl, and dompurify. firefox-ios is written in Swift and onyx in Python.

- [mozilla-mobile/firefox-ios](https://seerepo.com/r/mozilla-mobile/firefox-ios): Firefox for iOS
- [onyx-dot-app/onyx](https://seerepo.com/r/onyx-dot-app/onyx): Open Source AI Platform - AI Chat with advanced features that works with every LLM

## What they share and what sets them apart

- In common: Sentry, Rich, jinja2, markdown-it-py, markupsafe, mdurl, dompurify
- Only in firefox-ios: SnapKit, @mozilla/readability, SwiftDraw, voluptuous, SwiftyBeaver
- Only in onyx: FastAPI, amqp, asyncpg, azure-storage-blob, azure-storage-file-datalake, fastavro, google-cloud-core, ldap3, partd, psycopg2-binary, py-key-value-aio, pyzmq, s3transfer, Celery, Redis, Postgres, kombu, pyairtable, Google, Google Cloud Storage, Hugging Face, OpenAI, PostHog, Stripe, asgiref, fastmcp-slim, Flask, graphql-core, jupyter-core, tornado, werkzeug, starlette, AIOHTTP, fastmcp, uvicorn, anyio, Tauri, objc2-app-kit, objc2-foundation, Tokio, React, react-native, Expo, expo-secure-store, react-native-mmkv, Next.js, Lit, cycler, fonttools, soupsieve, charm.land/lipgloss/v2, contourpy, matplotlib-inline, prompt-toolkit, urwid, charm.land/bubbletea/v2, charm.land/bubbles/v2, matplotlib, SQLAlchemy, alembic, argon2-cffi, argon2-cffi-bindings, authlib, azure-identity, google-auth-httplib2, itsdangerous, joserfc, keyring, msal-extensions, pwdlib, pyjwt, python3-saml, cryptography, httpx-oauth, msal, oauthlib, requests-oauthlib, bcrypt, google-auth-oauthlib, accelerate, agent-client-protocol, azure-cognitiveservices-speech, einops, langchain-protocol, langsmith, NVIDIA, nvidia-cudnn-cu12, onnxruntime, openinference-instrumentation, openinference-semantic-conventions, scikit-learn, triton, litellm, MCP, chonkie, torch, sentence-transformers, tiktoken, langfuse, cohere, exa-py, LangChain, safetensors, tokenizers, transformers, unstructured-client, voyageai, defusedxml, docutils, et-xmlfile, lxml, lxml-html-clean, magika, mako, mammoth, markdownify, msoffcrypto-tool, olefile, pdfminer-six, pdfplumber, python-docx, python-pptx, rich-rst, ruamel-yaml, xlrd, xlsxwriter, beautifulsoup4, puremagic, pillow, github.com/yuin/goldmark, pypdf, markitdown, mistune, openpyxl, pypdfium2, reportlab, sendgrid, annotated-types, beartype, jsonschema-path, jsonschema-specifications, openapi-pydantic, referencing, Pydantic, pydantic-core, email-validator, jsonschema, azure-core, coloredlogs, execnet, OpenTelemetry, opentelemetry-exporter-http-transport, opentelemetry-exporter-otlp-common, opentelemetry-semantic-conventions, python-json-logger, supervisor, prometheus-client, psutil, boto3, botocore, prometheus-fastapi-instrumentator, github.com/sirupsen/logrus, kubernetes, aiobotocore, docker, gtk, window-vibrancy, tauri-plugin-window-state, Tailwind CSS, nativewind, class-variance-authority, tailwind-merge, react-native-svg, react-native-safe-area-context, rn-primitives, expo-image, React Hook Form, react-native-reanimated, react-native-gesture-handler, react-native-keyboard-controller, expo-splash-screen, expo-status-bar, react-native-enriched-markdown, Shopify, expo-document-picker, expo-image-picker, react-native-streamdown, next-themes, Formik, Radix UI, motion, react-dropzone, dnd-kit, lowlight, recharts, react-icons, Lucide, react-markdown, remark-gfm, highlight.js, rehype-katex, remark-math, katex, rehype-highlight, unified, docx-preview, pdfjs-dist, react-pdf, rehype-sanitize, rehype-stringify, remark, remark-parse, xlsx, yup, TanStack, @floating-ui/react-dom, react-day-picker, marked

## Side by side

| | firefox-ios | onyx |
|---|---|---|
| Size | 592,956 lines written, 2,242 code files | 1,626,990 lines written, 3,906 code files |
| Who writes it | 0.2% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 11.7% of its commits signed by AI. With Claude Code, Devin, Cursor, CodeRabbit, GitHub Copilot, and Sweep |
| Activity | Last push November 10, 2026, 20,850 commits, 13,068 stars | Last push November 7, 2026, 11,391 commits, 33,270 stars |
| Tests | 1,280 test files. 54.3% of its code files have a test that imports them | 3,158 test files. 45.7% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, firefox-ios or onyx?

onyx, with 1,626,990 lines written; firefox-ios has 592,956.

The proof: [onyx-dot-app/onyx's code at commit a757433](https://github.com/onyx-dot-app/onyx/tree/a757433ddef3b75a4286e026ee943c6bc63950bc)

### Which has more GitHub stars, firefox-ios or onyx?

onyx, with 33,270 stars; firefox-ios has 13,068.

The proof: [onyx-dot-app/onyx on GitHub](https://github.com/onyx-dot-app/onyx)

### Which has more tests, firefox-ios or onyx?

onyx, with 3,158 test files; firefox-ios has 1,280.

The proof: [onyx-dot-app/onyx's code at commit a757433](https://github.com/onyx-dot-app/onyx/tree/a757433ddef3b75a4286e026ee943c6bc63950bc)

### Which was updated more recently, firefox-ios or onyx?

firefox-ios: its last push was on November 10, 2026, and onyx's on November 7, 2026.

The proof: [mozilla-mobile/firefox-ios's commits on GitHub](https://github.com/mozilla-mobile/firefox-ios/commits)

### Which has more commits signed by AI, firefox-ios or onyx?

onyx: an AI signed 11.7% of its commits, with Claude Code, Devin, Cursor, CodeRabbit, GitHub Copilot, and Sweep; in firefox-ios, 0.2%.

The proof: [the commits each tool signed in onyx-dot-app/onyx](https://seerepo.com/r/onyx-dot-app/onyx/ai)

## Sources

- mozilla-mobile/firefox-ios: Read on November 10, 2026, at commit 81b5f3a (https://github.com/mozilla-mobile/firefox-ios/tree/81b5f3ab6442df317734d1d363532d262d4f78cf)
- onyx-dot-app/onyx: Read on November 7, 2026, at commit a757433 (https://github.com/onyx-dot-app/onyx/tree/a757433ddef3b75a4286e026ee943c6bc63950bc)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.