An online video editor with AI auto-reframe for every platform
A multi-track timeline in the browser: cut, add text with 200+ fonts and animations, keyframes, transitions, filters and auto subtitles. Then export 9:16, 1:1, 4:5 and 16:9 versions at once, following faces, up to 4K at 60 fps.
The free plan includes 30 credits to start, no card needed.
The editing tools you expect, in the browser
Multi-track timeline
Main video, overlays, text and audio on separate tracks. Split, trim, move and duplicate clips, with snapping and undo.
Text with 200+ fonts
Titles and captions with entrance, exit and loop animations, including typewriter and word-by-word effects.
Keyframes
Animate position, scale, rotation and opacity between keyframes for zooms, pans and motion graphics.
Transitions and filters
Fades, push, zoom, wipes and blur transitions. Filters and adjustments for brightness, contrast and saturation.
Speed and volume
Slow down or speed up clips, adjust volume and fade audio in and out.
Auto subtitles
Transcribe the audio — the language is detected automatically — and get editable captions on the timeline.
One edit, every aspect ratio
Edit once in the format you prefer. When you export, TONTRIA creates the other versions and moves the crop to follow the faces, so nobody ends up out of frame.
- 9:16 for TikTok, Reels and Shorts
- 4:5 and 1:1 for the Instagram feed
- 16:9 for YouTube
- Multi-format export at once and up to 4K / 60 fps on Pro and Label
| Platform | Aspect ratio |
|---|---|
| TikTok | 9:16 |
| Instagram Reels and Stories | 9:16 |
| YouTube Shorts | 9:16 |
| Instagram feed | 4:5 or 1:1 |
| YouTube | 16:9 |
| Spotify Canvas | 9:16 (8-second loop) |
How to auto-reframe a video for TikTok, Reels and Shorts
- Upload or open your video. Start from a file, or from a clip created with AI Clips.
- Edit on the timeline. Cut the parts you don’t need, add the title, captions and your logo.
- Choose the formats. Select 9:16, 1:1, 4:5 and/or 16:9.
- Export. Each version is reframed to follow the faces and rendered in the quality of your plan.
Built for music content
General-purpose editors make you repeat the same edit for every platform. In music, the same piece of content usually needs to exist in four shapes: the vertical teaser, the square post, the 4:5 feed version and the horizontal YouTube upload. Multi-format export saves that repetition.
The editor is also connected to the rest of TONTRIA: open a clip suggested by the AI, a lyric video or a release asset and keep editing it with the same fonts and brand presets.
Who uses it
- Artists who edit their own content and want a faster way to publish everywhere.
- Content teams at labels that adapt each video for several platforms and several artists.
- Managers who need to turn around a quick edit for a press day or a premiere.
Video editor: frequently asked questions
What is AI auto-reframe?
Auto-reframe changes the aspect ratio of a video — for example from horizontal 16:9 to vertical 9:16 — and moves the crop to keep the important part in frame. In TONTRIA it follows the faces in the video, and it can export 9:16, 1:1, 4:5 and 16:9 versions at once.
Do I need to install anything?
No. The editor runs in the browser, so there is nothing to download or install.
What export quality is available?
Up to 4K at 60 fps on the Pro and Label plans, 1080p on Creator and 720p on Free.
Can it add subtitles automatically?
Yes. Auto subtitles transcribe the audio — the language is detected automatically — and place the captions on the timeline, where you can edit the text and style.
Does editing use credits?
Credits are used when media is processed (1 credit = 1 minute). Editing and re-exporting a project is free.
Do I need editing experience?
No. If you have used any timeline editor, the workflow will feel familiar: tracks, split, trim, text, transitions and keyframes. And if you haven’t, you can start from a clip the AI already cut and only adjust what you want. The editor is connected to TONTRIA’s music tools and exports every aspect ratio at once.
Edit once, publish everywhere
Try the editor and the AI auto-reframe on the free plan.
The free plan includes 30 credits to start, no card needed.