SEDIO (Ampliora product): A full video editor that runs in the browser
SEDIO is a professional video editor we designed and built from scratch. It runs in any modern browser, edits on the creator’s own device, and uses AI for captions, voiceovers, background removal and sound separation.
Short-form video drives attention for businesses and creators alike, but the tools to make it are split in two. Desktop editors are powerful but expensive, heavy and hard to learn. Phone apps are quick but cramped, watermark the export or lock key features behind a subscription.
Most online editors also upload every clip to a server before they can do anything. That is slow on Nigerian internet, uses up data, and means private footage sits on someone else’s computer.
We wanted an editor with the depth of desktop software, the speed of a phone app and the privacy of working offline: open a link, drop in footage, and export a finished Reel or TikTok without a single video leaving the computer.
What we built
We built SEDIO, a multi-track video editor that runs entirely in the browser. Editing, effects, captions, voices and exports all happen on the device, with on-device AI models for speech, voices, people and sound, and Claude for caption clean-up. It installs as an app on Windows and works offline.
Inside the build
- Multi-track timeline: A main video track plus unlimited overlay video, text, effects and audio tracks. Trim, split, merge, group, copy and box-select clips, with magnetic tracks, snapping and full undo and redo.
- Auto captions in 18 languages: SEDIO listens to the speech and writes timed captions that can light up word by word, plus auto lyrics for music videos, batch find and replace, and one style applied across every line.
- AI enhanced captions with Claude: A more accurate speech model writes the transcript, then Claude fixes misheard names, spelling and punctuation to fit the story, while every line keeps the timing of the words actually spoken.
- Key words, emojis and auto zoom: Claude picks the words that carry each caption and an emoji where one fits. Auto zoom then punches in on each key word as it is spoken, for the fast-paced style that keeps viewers watching.
- Edit by transcript and text to speech: Delete words in the transcript to cut them from the video, remove filler words or long pauses in one click, and add voiceovers in 28 natural English voices.
- AI background removal: Cut people out of their background with one click, no green screen needed, using a segmentation model that runs locally. A full chroma key with spill removal handles real green screens.
- Auto reframe: Turns a landscape video into a vertical Reel by following the person in the shot, with a smooth camera or a close follow, per clip or for the whole edit.
- Separate vocals, music and voice: AI splits a song into vocals, drums, bass and instruments, or a video’s sound into voice, music and effects. Make karaoke, remove background music, or put every part on its own track.
- Voice cleanup and auto ducking: Removes hiss, hum and room noise learned from the clip’s own quiet moments and evens out the voice. Music dips automatically whenever someone speaks.
- Sound library and beat sync: 19 sound effects and 7 music beds, from Afrobeats and Amapiano to cinematic, free for commercial use. Beat sync finds a song’s beats and cuts the edit so every cut lands on one.
- Text, stickers and effects: 12 fonts, 15 ready-made text styles, typewriter, pop and glow animations, animated stickers, and effects from film grain and glitch to cinema bars and slow zoom.
- Keyframes, masks and blend modes: Animate position, size, rotation, colour and volume. Shape masks with feathering, 16 blend modes, picture in picture, crop, rotate, rounded corners and compound clips.
- Speed, stabilization and anti-flicker: Speed from 0.1× to 10× with curves and smooth slow motion, reverse and freeze frame, shake removal, and a fix for the flicker LED lights cause on camera.
- Multi-camera and motion tracking: Line up two to four cameras by their sound and cut between them live with keys 1 to 4. Make text and stickers follow a moving subject.
- Brand kit: Save brand colours, caption and title styles, a logo, an intro and an outro once, then apply them to any project in one click.
- Fast export for Reels and TikTok: Presets for Instagram Reels, TikTok or both from one render, sound levelled to -14 LUFS, warnings for text the apps would cover, and hardware encoding that renders faster than real time.
- Smooth with 4K and long videos: Large or long footage is edited through a lightweight copy made in the background, so playback stays smooth on any laptop. Exports always use the originals.
- Private, offline and installable: Videos are never uploaded. Projects save automatically in the browser, back up as project files, and SEDIO installs as an app on Windows that works offline and updates itself.