head to head · open source
ECC vs gitdiagram
ECC has 303,212 GitHub stars, 44,697 forks, 280 open issues and last shipped 6 days ago. gitdiagram has 18,931 stars, 1,445 forks, 43 open issues and last shipped 4 days ago. ECC leads on adoption by 1,502% (303,212 vs 18,931 stars). ECC is written in JavaScript under MIT; gitdiagram is written in TypeScript under MIT. ECC has attracted 15% as many forks as stars, gitdiagram 8%. gitdiagram was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (developer-tools, llm), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ECC | gitdiagram | |
|---|---|---|
| GitHub stars | ★ 303K | ★ 19K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-09 | 2026-11-11 |
| Forks | ⑂ 45K | ⑂ 1.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ECC if
- You weight community size — 303K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick gitdiagram if
- You want the gitdiagram feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and gitdiagram fits your workflow better
About ECC
Language: English العربية Português (Brasil) 简体中文 繁體中文 日本語 한국어 Türkçe Русский Tiếng Việt ไทย Deutsch Español Українська Polski বাংলা [!WARNING] Official sources only. Install ECC only from verified channels: the GitHub repository github.com/affaan m/ECC, the npm packages ecc universal and ecc agentshield , the GitHub App, the plugin slug ecc@ecc , and the project website ecc.tools. Third party re uploads and unofficial mirrors are not maintained or reviewed by the project and may contain malware. Install with Claude Code Use the guided setup or native plugin commands. Both install the same ecc@ecc plugin. Choose…
About gitdiagram
GitDiagram Visualize any codebase: turn any public or private GitHub repository into an interactive architecture diagram, or watch it explained in a one minute narrated video. AI agents can use it too, through the MCP server or the Markdown version of any diagram ( gitdiagram.com/owner/repo.md ). Try GitDiagram → · Or replace hub with diagram in any GitHub repository URL. Sponsored SMS, WhatsApp, and RCS through one API. Try Sent → New: explainer videos GitDiagram can now turn a repository into a narrated video of about a minute. The video starts with what the project is for and what people do with it, then…
read the full gitdiagram overview →
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Frequently asked questions
Is ECC or gitdiagram more popular?
ECC has 303,212 GitHub stars and gitdiagram has 18,931. ECC has the larger community by that measure.
Are ECC and gitdiagram free?
Both are open source. ECC is licensed under MIT and gitdiagram under MIT. Neither carries a licence fee.
What is the difference between ECC and gitdiagram?
ECC is written in JavaScript and gitdiagram in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ECC or gitdiagram?
Choose ECC if you want the larger community (303,212 stars) or its MIT licence terms. Choose gitdiagram if its feature set, stack or MIT licence fits better. Both are self-hostable.