head to head · open source
SingleFile vs chatGPTBox
SingleFile has 22,411 GitHub stars, 1,410 forks, 101 open issues and last shipped yesterday. chatGPTBox has 10,755 stars, 874 forks, 211 open issues and last shipped 2 days ago. SingleFile leads on adoption by 108% (22,411 vs 10,755 stars). SingleFile is written in JavaScript under AGPL-3.0; chatGPTBox is written in JavaScript under MIT. SingleFile has attracted 6% as many forks as stars, chatGPTBox 8%. SingleFile was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (chrome-extension, firefox-addon), 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
| SingleFile | chatGPTBox | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 11K |
| License | AGPL-3.0 | MIT |
| Written in | JavaScript | JavaScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 1.4K | ⑂ 874 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SingleFile if
- You weight community size — 22K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick chatGPTBox if
- You want the chatGPTBox feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and chatGPTBox fits your workflow better
About SingleFile
SingleFile is a web extension, and also a command line tool, that saves a complete web page into a single HTML file. It is written in JavaScript and released under the AGPL 3.0 license, and it lives in the browser extension ecosystem, with builds published for Chrome, Firefox (desktop and mobile), Microsoft Edge, Safari, Vivaldi, Brave, Waterfox, Yandex browser, and Opera. The project has been developed for roughly sixteen years and is distributed through the extension stores of Firefox, Chrome, Safari, and Microsoft Edge, as well as through manual installation from the project archive.
read the full SingleFile overview →
About chatGPTBox
chatGPTBox is a free, MIT licensed browser extension that puts deep ChatGPT and multi model AI integration into Chrome, Edge, Firefox, Safari, and Android, aimed at people who want assistant features on any page rather than in a separate tab.
read the full chatGPTBox overview →
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Frequently asked questions
Is SingleFile or chatGPTBox more popular?
SingleFile has 22,411 GitHub stars and chatGPTBox has 10,755. SingleFile has the larger community by that measure.
Are SingleFile and chatGPTBox free?
Both are open source. SingleFile is licensed under AGPL-3.0 and chatGPTBox under MIT. Neither carries a licence fee.
What is the difference between SingleFile and chatGPTBox?
SingleFile is written in JavaScript and chatGPTBox in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SingleFile or chatGPTBox?
Choose SingleFile if you want the larger community (22,411 stars) or its AGPL-3.0 licence terms. Choose chatGPTBox if its feature set, stack or MIT licence fits better. Both are self-hostable.