head to head · open source
koreader vs Lingo.dev
koreader has 30,818 GitHub stars, 2,019 forks, 1,345 open issues and last shipped yesterday. Lingo.dev has 5,400 stars, 811 forks, 34 open issues and last shipped 8 days ago. koreader leads on adoption by 471% (30,818 vs 5,400 stars). koreader is written in Lua under AGPL-3.0; Lingo.dev is written in TypeScript under Apache-2.0. koreader has attracted 7% as many forks as stars, Lingo.dev 15%. koreader was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| koreader | Lingo.dev | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 5.4K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Lua | TypeScript |
| Last push | 2026-11-02 | 2026-10-26 |
| Forks | ⑂ 2.0K | ⑂ 811 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick koreader if
- You weight community size — 31K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Lua
- You value the larger contributor base for long-term maintenance
pick Lingo.dev if
- You want the Lingo.dev feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Lingo.dev fits your workflow better
About koreader
KOReader is a document viewer primarily aimed at e ink readers. [![AGPL Licence][badge license]](COPYING) [![Latest release][badge release]][link gh releases] [![Gitter][badge gitter]][link gitter] [![Mobileread][badge mobileread]][link forum] [![Build Status][badge circleci]][link circleci] [![Coverage Status][badge coverage]][link coverage] [![Weblate Status][badge weblate]][link weblate] Download • User guide • Wiki • Developer docs Main features portable : runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux…
read the full koreader overview →
About Lingo.dev
Open source localization engineering tools. Connect to Lingo.dev localization engineering platform for consistent, quality translations. Lingo API • Lingo React MCP • Lingo CLI • Lingo GitHub Action • Lingo Compiler for React (Early alpha) Quick Start Localization engines These tools connect to localization engines – stateful translation APIs you create on the Lingo.dev localization engineering platform. Each engine persists glossaries, brand voice, and per locale instructions across every request, reducing terminology errors 16.6–44.6%. Or bring your own LLM. Lingo.dev MCP Setting up i18n in React apps is error…
read the full Lingo.dev overview →
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Frequently asked questions
Is koreader or Lingo.dev more popular?
koreader has 30,818 GitHub stars and Lingo.dev has 5,400. koreader has the larger community by that measure.
Are koreader and Lingo.dev free?
Both are open source. koreader is licensed under AGPL-3.0 and Lingo.dev under Apache-2.0. Neither carries a licence fee.
What is the difference between koreader and Lingo.dev?
koreader is written in Lua and Lingo.dev 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, koreader or Lingo.dev?
Choose koreader if you want the larger community (30,818 stars) or its AGPL-3.0 licence terms. Choose Lingo.dev if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.