# Replace AI Translator API

> Translate the page you're viewing in place using cloud LLMs with your own API key. Replace the original text and switch back in one click, with natural, context-aware results. Mixed-language and infinite-scroll friendly.

Canonical page: [https://chrome-stats.com/d/replace-translator](https://chrome-stats.com/d/replace-translator)

## Overview

- **ID:** `replace-translator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ゆろち
- **Category:** other
- **Daily users:** 1
- **Version:** 1.0.26
- **Last updated:** 2026-09-06
- **First published:** 2026-06-05
- **Size:** 2.96 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/replace-translator/)
- **Website:** [https://github.com/1llum1n4t1s/ReplaceTranslator/issues](https://github.com/1llum1n4t1s/ReplaceTranslator/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/replace-translator/privacy/](https://addons.mozilla.org/firefox/addon/replace-translator/privacy/)

## Description

Translate the page you are viewing in place using the cloud LLM of your choice. Like Chrome's built-in page translation, it replaces the original text with the translation and lets you switch back with one click — but it uses large language models for more natural, context-aware results.

[Features]
- In-place replacement — replace the original text with the translation, toggle back to the original
- Multiple LLM providers — switch between providers such as OpenAI / Anthropic / Google Gemini / xAI using your own API key
- Per-model reasoning control — remember reasoning effort or thinking-budget choices for each supported model; Auto uses the translation-optimized minimum
- No-key option — MyMemory (free NMT) works with no key or signup (best for short text, instant trial)
- Pinpoint mixed-language translation — text already in the target language is left untouched; only the other languages are translated
- Optional settings sync — share languages, models, display preferences, and exclusions across PCs through browser sync. Off by default; API keys and translation data stay out of sync.
- Auto-translate exclusions — skip auto-translate only on sites matching a URL, host, or wildcard rule
- Infinite scroll / SPA friendly — content loaded later is translated automatically
- Quick translate — translate short text right inside the popup
- Image text translation (experimental, vision-capable LLMs)
- Privacy-first — API keys stay local in your browser; text is sent only to the provider you chose

[About API keys]
In line with each provider's terms, this extension works with API keys (API tokens) only. It does not reuse consumer chat-plan logins. To try it for free, a provider with a free tier or the no-key MyMemory option is a good start.

## Rankings

- #112,335 — Overall
- #105 — replace
- #197 — replay

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `alarms`
- `scripting`
- `contextMenus`

### Host permissions

- `<all_urls>`

### Content script matches

- `*`
- ``

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [MelonTranslate](https://chrome-stats.com/d/melontranslate) — 3 users
- [AI Page Translator](https://chrome-stats.com/d/ai-page-translator) — 24 users
- [AI Translate](https://chrome-stats.com/d/ai-translate) — 9 users
- [Local Translate AI](https://chrome-stats.com/d/local-translate-ai) — 8 users
- [Anylang Translator](https://chrome-stats.com/d/anylang-translator) — 1 users
- [AI Website Translation](https://chrome-stats.com/d/ai-website-translation) — 1 users
- [Simple AI Translator](https://chrome-stats.com/d/simple-ai-translator) — 14 users
- [Imp Translate](https://chrome-stats.com/d/imp-translate) — 9 users
- [Mira Translator - Web Translation](https://chrome-stats.com/d/mira-translator) — 48 users, 5.00 / 5
- [LLM Translator](https://chrome-stats.com/d/llm-translator) — 4 users
- [AI Translator](https://chrome-stats.com/d/ai-translator) — 8 users, 5.00 / 5
- [Fast Translate](https://chrome-stats.com/d/fast-translate) — 13 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/replace-translator)