BYOAIK — Bring Your Own AI Key: a directory of AI tools that run on your own API key.

KISS Translator

Minimalist open-source bilingual webpage translation extension with bring-your-own-key AI support.

Website Source code

Category:

Productivity Tools

Pricing:

Open Source

Open source:

Yes (GPL-3.0)

Self-hostable:

Yes

Local-first:

Yes

Platforms:

Browser Extension, Web, Self-hosted, Docker

AI providers (bring your own key):

OpenAI, Anthropic, Google Gemini, OpenRouter, DeepSeek, Ollama, Custom / OpenAI-compatible

API key storage:

Stored in browser storage

Key risk level:

MEDIUM

Trust score:

85/100

KISS Translator is a simple, open-source bilingual translation browser extension and userscript (Greasemonkey/Tampermonkey) for translating webpages, selected text, input boxes, and YouTube/video subtitles side-by-side. It supports a wide range of translation backends, including AI/LLM services where the end user supplies their own API credentials: OpenAI, Google Gemini, Anthropic Claude, Ollama, DeepSeek, and OpenRouter, alongside conventional engines like Google, Microsoft, DeepL/DeepLX, Azure AI, and Cloudflare AI. Users configure their own API keys and can point AI services at custom OpenAI-compatible base URLs/endpoints; a Hook mechanism lets it work with virtually any translation interface. It runs across Chrome, Edge, Firefox, Safari (Mac/iOS), Kiwi (Android), Orion, and Thunderbird, and offers cross-device sync via WebDAV or a self-hostable KISS-Worker. Released under GPL-3.0, actively maintained (v2.0.25, June 2026), ~10.9k GitHub stars.

How your API key is handled

Your API key is stored in your browser's local storage. Requests are sent directly to the AI provider. Because it can be self-hosted, your key never has to touch a third-party backend.

Setup

Open the extension/app settings, paste your provider API key (kept in your browser), and pick a model.