Bring your own Gemini key
Use a Google AI Studio API key you control instead of spending TTS For Free translation credits.
Gemini SRT Translator
Translate subtitles with your own Gemini API key.
Paste long text, upload SRT subtitles, tune prompts when needed, and translate batches with Gemini while keeping timestamps ready for export.
Gemini subtitle translator
Translate SRT & Text with AI
Fast • Batch • Keep formatting
Login is required before sending translation requests on this page.
Google AI Studio API KeyGet key
Translation language
0/15 req/min
Auto reset in 60s
Customize prompt
Advanced, most users can leave this as is
SRT input
0 blocksSRT mode groups 40 subtitle blocks per request and also runs with concurrency 3. Using 30 blocks per request. 0 batches.
Translated subtitle blocks
Original + translated subtitles
0 blocks| # | Original | Translated |
|---|
Ready
The API key is stored only in your browser localStorage on this device. For production use, move Gemini calls to a server route.
SRT input
0 batches
SRT Translation History
Restore previous subtitle translations and continue working from where you left off.
Total: 0 items
Login to view and restore your SRT translation history. Login now
Total: 0 items
| No. | Time | File | Target | Blocks | Actions |
|---|---|---|---|---|---|
| No translation history yet. | |||||
No translation history yet.
Tutorial Video
How to translate subtitles with Gemini
A quick workflow for long text and subtitle batches using your own Gemini API key.
- 1
Step 1: Save your Gemini key and prompt
Enter the API key, add a translation prompt, choose the target language, then save the setup to localStorage.
- 2
Step 2: Choose text mode or SRT mode
Use text mode for plain content with auto chunking, or SRT mode to upload and parse subtitle files.
- 3
Step 3: Pick a model and monitor requests
Choose a Gemini model, then watch the local request counter while the page runs up to 3 calls in parallel.
- 4
Step 4: Review and export
Copy translated text directly, or download the translated SRT file after subtitle batch translation finishes.
Tip: tune the prompt first on a few subtitle batches before translating a full-length subtitle file.
Why use your own Gemini API key?
This page is for BYOK users who want direct control over Gemini prompts, models, and Google's available free quota.
Uses Google's free quota
Useful for testing prompts, translating batches, and running personal subtitle workflows with Gemini limits you manage.
Key stays in your browser
Saved settings are stored in browser localStorage on your device, so the workflow stays lightweight and transparent.
Batch subtitle translation
SRT mode groups subtitle blocks, keeps timestamps in place, and lets you export a translated .srt file after review.
Built for manual Gemini subtitle workflows
This page focuses on prompt-driven translation with your own Gemini API key. It supports plain text mode for oversized content and SRT mode for subtitle-specific batching, making it easier to test prompts, estimate request usage, and export translated subtitle files.
Made for prompt-first subtitle translation
Unlike a generic translator box, this workflow keeps prompt editing, API key storage, request counting, text chunking, SRT parsing, and translated SRT download in one place so you can iterate faster on subtitle prompts.
Good fit for subtitle power users
Use the Gemini translator for anime subtitles, movie captions, YouTube transcripts, podcast excerpts, education content, and localization drafts where prompt control matters.
- Anime and fan subtitles
- YouTube captions
- Podcast transcripts
- Course subtitles
- Localization review
- Prompt testing
Supported input formats
The page is designed around .srt subtitle files and plain text. SRT mode preserves subtitle timing while text mode handles long scripts, transcripts, or drafts that do not need timestamps.
Gemini Translator vs managed SRT Translation
Both tools translate subtitles, but they serve different search intent. Choose Gemini when you want a BYOK workflow; choose SRT Translation when you want the platform to manage the AI workflow.
| Feature | Gemini Translator | SRT Translation |
|---|---|---|
| Primary use case | Gemini/BYOK subtitle translation | Managed SRT translation |
| API key | Bring your own Gemini key | No API key required |
| Credits | Uses Google's quota | Uses TTS For Free credits |
| Provider choice | Gemini only | Managed AI workflow |
| Large files | Best for hands-on batching | Better for guided production review |
| Translation history | Basic SRT history | Managed translation history |
| Dictionaries | Prompt-based terms | Built-in translation dictionaries |
| Best for | Developers and power users | Creators and teams avoiding API keys |
Prefer not to manage API keys?
Use SRT Translation when you want a simpler managed workflow with translation history, dictionaries, and no Google AI Studio setup.
Open SRT TranslationFrequently Asked Questions
Q: Does this Gemini subtitle translator require my own API key?
A: Yes. The page requires a Gemini API key and stores it only in your browser localStorage if you click save.
Q: Does it use Google's free Gemini quota?
A: The requests are made with your Gemini API key, so usage follows the quota and limits of your own Google AI Studio account.
Q: Can it translate long text automatically?
A: Yes. Text mode splits oversized content into chunks and sends up to 3 requests in parallel.
Q: How are SRT subtitles sent to Gemini?
A: SRT mode parses the subtitle file and sends subtitle blocks in batches while keeping timestamps locally.
Q: Can I download the translated SRT file?
A: Yes. After SRT translation finishes, you can download a translated .srt file directly from the page.
Q: When should I use SRT Translation instead?
A: Use SRT Translation if you do not want to manage a Gemini API key, need a managed workflow, or want translation dictionaries and history.