head to head · open source
nextai-translator vs BetterViewer
nextai-translator has 24,999 GitHub stars, 1,851 forks, 529 open issues and last shipped 1 months ago. BetterViewer has 551 stars, 29 forks, 0 open issues and last shipped 7 days ago. nextai-translator leads on adoption by 4,437% (24,999 vs 551 stars). nextai-translator is written in TypeScript under AGPL-3.0; BetterViewer is written in TypeScript under MIT. nextai-translator has attracted 7% as many forks as stars, BetterViewer 5%. BetterViewer was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (browser-extension, chrome-extension), 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
| nextai-translator | BetterViewer | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 551 |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-03 | 2026-10-10 |
| Forks | ⑂ 1.9K | ⑂ 29 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nextai-translator if
- You weight community size — 25K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick BetterViewer if
- You want the BetterViewer feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and BetterViewer fits your workflow better
About nextai-translator
NextAI Translator is an open source, AGPL 3.0 licensed browser extension and cross platform desktop application that performs selected text translation, polishing, and summarization through the ChatGPT API, and it is aimed at readers, writers, and developers who want all three of those operations available on Windows, macOS, and Linux rather than on a single platform.
read the full nextai-translator overview →
About BetterViewer
BetterViewer is an MIT licensed, TypeScript image viewer and editor that runs as a browser extension for Chrome, Edge and Firefox based browsers and as a desktop application for Windows, Linux and macOS, aimed at anyone who wants more than the browser's built in image viewing mode.
read the full BetterViewer overview →
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Frequently asked questions
Is nextai-translator or BetterViewer more popular?
nextai-translator has 24,999 GitHub stars and BetterViewer has 551. nextai-translator has the larger community by that measure.
Are nextai-translator and BetterViewer free?
Both are open source. nextai-translator is licensed under AGPL-3.0 and BetterViewer under MIT. Neither carries a licence fee.
What is the difference between nextai-translator and BetterViewer?
nextai-translator is written in TypeScript and BetterViewer 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, nextai-translator or BetterViewer?
Choose nextai-translator if you want the larger community (24,999 stars) or its AGPL-3.0 licence terms. Choose BetterViewer if its feature set, stack or MIT licence fits better. Both are self-hostable.