Source: https://seerepo.com/compare/DuarteSantos8/openGym/vs/langflow-ai/langflow
Markdown source: https://seerepo.com/compare/DuarteSantos8/openGym/vs/langflow-ai/langflow.md
Description: openGym and langflow share 5 technologies: React, react-router-dom, Vite, Google, and MCP. openGym is written in JavaScript and langflow in Python.

# openGym vs langflow

openGym and langflow share 5 technologies: React, react-router-dom, Vite, Google, and MCP. openGym is written in JavaScript and langflow in Python.

- [DuarteSantos8/openGym](https://seerepo.com/r/DuarteSantos8/openGym): Open-source gym & body-weight tracker, now in the App Store (iPhone + Apple Watch) and as an Android APK. Plan routines, log workouts, see which muscles are trained, import from Strong/Hevy/FitNotes. Self-host it or use it on the phone alone.
- [langflow-ai/langflow](https://seerepo.com/r/langflow-ai/langflow): Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

## What they share and what sets them apart

- In common: React, react-router-dom, Vite, Google, MCP
- Only in openGym: Jetpack Compose, CapacitorApp, CapacitorCordova, core-ktx, Capacitor, @simplewebauthn/server, appcompat, coordinatorlayout, core-splashscreen, fragment, androidx.wear.compose:compose-material3, androidx.wear.compose:compose-foundation, Leaflet, linkedom, jsqr, Zod
- Only in langflow: FastAPI, pyarrow, oracledb, Redis, OpenAI, uvicorn, AIOHTTP, Rich, SQLAlchemy, cryptography, pyjwt, bcrypt, google-auth-oauthlib, firecrawl-py, LangChain, langchain-classic, exa-py, pillow, defusedxml, pypdf, markitdown, Pydantic, jsonschema, msgspec, validators, psutil, loguru, boto3, Tailwind CSS, class-variance-authority, tailwind-merge, xyflow, Radix UI, ag-grid-community, Framer, react-hotkeys-hook, use-stick-to-bottom, react-syntax-highlighter, ace-builds, Headless UI, cmdk, elkjs, react-day-picker, react-error-boundary, react-sortablejs, reactflow, Lucide, react-icons, @radix-ui/react-icons, react-markdown, remark-gfm, dompurify, rehype-sanitize, rehype-raw

## Side by side

| | openGym | langflow |
|---|---|---|
| Size | 311,893 lines written, 581 code files | 1,446,517 lines written, 3,937 code files |
| Who writes it | 8.6% of its commits signed by AI. With Claude Code and Cursor | 1.5% of its commits signed by AI. With Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp |
| Activity | Last push November 6, 2026, 2,274 commits, 19,729 stars | Last push November 4, 2026, 17,600 commits, 156,316 stars |
| Tests | 805 test files. 68.2% of its code files have a test that imports them | 3,083 test files. 35.1% 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, openGym or langflow?

langflow, with 1,446,517 lines written; openGym has 311,893.

The proof: [langflow-ai/langflow's code at commit 60999cc](https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

### Which has more GitHub stars, openGym or langflow?

langflow, with 156,316 stars; openGym has 19,729.

The proof: [langflow-ai/langflow on GitHub](https://github.com/langflow-ai/langflow)

### Which has more tests, openGym or langflow?

langflow, with 3,083 test files; openGym has 805.

The proof: [langflow-ai/langflow's code at commit 60999cc](https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

### Which was updated more recently, openGym or langflow?

openGym: its last push was on November 6, 2026, and langflow's on November 4, 2026.

The proof: [DuarteSantos8/openGym's commits on GitHub](https://github.com/DuarteSantos8/openGym/commits)

### Which has more commits signed by AI, openGym or langflow?

openGym: an AI signed 8.6% of its commits, with Claude Code and Cursor; in langflow, 1.5%.

The proof: [the commits each tool signed in DuarteSantos8/openGym](https://seerepo.com/r/DuarteSantos8/openGym/ai)

## Sources

- DuarteSantos8/openGym: Read on November 6, 2026, at commit 8fb98b1 (https://github.com/DuarteSantos8/openGym/tree/8fb98b16861a2728652302a7e6e30c50548493a0)
- langflow-ai/langflow: Read on November 4, 2026, at commit 60999cc (https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

## 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.