Is my video uploaded?

No. The video stays in your browser and is processed with local browser APIs.

Does the AI send audio to a server?

No. The speech model downloads on demand and inference runs on your device. Only static model files are fetched.

Can I use it on a phone?

Yes. The layout adapts to mobile, uses a smaller AI model on constrained devices, and lets you lower export resolution.

What is stored in a project file?

Only editable settings, captions, text, and basic source metadata. Reopening asks you to relink the original media.

Translate Video Subtitles to English

Turn speech in almost any language into English subtitles with a local AI model, then edit the timing and export.

Runs in your browser — your files are not uploaded

100% local processing — your video is never uploaded

Choose a video to subtitle

Canvas

Live preview

On this device

Import a video to beginPreview and export stay in your browser

0:00 / 0:00

Timeline

Playback & scrubbing

0 captions

Video

No media imported

Captions

Media and project text stay in this browser.AI model files download only when requested. Inference runs on this device; your video is never uploaded.Template footage ships with this site and is served from this domain — applying a template contacts no one.

Translate to English

Media and project text stay in this browser.

Pikavastaus

Mitä työkalu tekee: Translate Video Subtitles to English runs in your browser. Turn speech in almost any language into English subtitles with a local AI model, then edit the timing and export. Use 80 templates, local AI captions, and WebCodecs export without uploading your media.
Tiedostosi: Ei lähetystä palvelimelle – käsitellään laitteellasi
Hinta: Ilmainen, ei tiliä
Tiedostomuodot: MP4, MOV, M4V → MP4, WEBM, JSON, SRT, VTT

A capable editor that keeps the footage with you

Turn speech in almost any language into English subtitles with a local AI model, then edit the timing and export. The preview, project settings, captions, and final render stay in this browser. Save a small project JSON and relink the original video later without placing the footage in cloud storage.

What you can do

Choose from 80 built-in layouts across eight practical categories
Crop, rotate, flip, mute, resize, and adjust the output format
Apply brightness, contrast, saturation, monochrome, sepia, and blur
Add editable text and timed subtitle tracks
Generate captions with an on-demand, device-adaptive local AI model
Export with WebCodecs using your device — no server rendering

How to use the local video studio

Import a video Choose a video directly from your device. It is opened as a local browser object, not uploaded.
Choose a layout Apply a template or set the canvas, filter, text, and caption controls yourself.
Preview and refine Play the source on the canvas, seek on the timeline, and edit every setting before rendering.
Export locally Render an MP4 or WebM with WebCodecs and save the finished file straight to your device.

Your footage stays on your device

Video decoding, preview, AI inference, and rendering run in your browser. AI runtime and model files are downloaded only when you request captions; your audio and video are not included in those model requests. Project JSON contains settings and source metadata, never the media bytes or a private local path.

Varmista itse: Avaa selaimen kehittäjätyökalut → Verkko-välilehti ja käytä työkalua: yksikään pyyntö ei sisällä tiedostoasi. Kaikki tapahtuu laitteellasi.

Usein kysytyt kysymykset

Is my video uploaded?: No. The video stays in your browser and is processed with local browser APIs.
Does the AI send audio to a server?: No. The speech model downloads on demand and inference runs on your device. Only static model files are fetched.
Can I use it on a phone?: Yes. The layout adapts to mobile, uses a smaller AI model on constrained devices, and lets you lower export resolution.
What is stored in a project file?: Only editable settings, captions, text, and basic source metadata. Reopening asks you to relink the original media.