Video Editor

A sequential video track accepts video clips, still images and generated color cards. Four extra audio tracks support music/narration, offsets, trims, looping, fades and gain. Twelve timed titles and four image/video overlays can sit above the video. Cut, dissolve, wipe, slide and fade-through-black transitions are available. Clips and layers have brightness, contrast, saturation, hue, sepia and blur effects; layers also have opacity and fades. Image and video overlays can be moved and resized directly in the preview, with corner, half-screen and full-canvas presets. Layout builds side-by-side, top/bottom or picture-in-picture comparisons with adjustable proportions and labels. Layer audio can be added separately as an audio track.

It is an advanced browser editor for short, finished videos. It does not offer HDR color management, multicamera synchronization, external plugins, unlimited tracks, motion tracking, chroma keying or automatic transcription. Preview timing, color and text wrapping are approximate; inspect the rendered output.

Up to 24 media assets totaling 200 MiB, 150 MiB per file, 16 sequential video/image clips, 4 audio tracks, 12 titles and 4 image/video overlays. Export duration is at most three minutes. Even output dimensions are limited to 1920 per edge and 2,073,600 pixels. Source media can last up to one hour and video/images can have at most 16 million pixels.

No processing upload is required. Editing and FFmpeg rendering run in this browser. Project JSON and reports download only when requested. Public pages use advertising and site services described in the privacy policy.

JSON stores timeline choices, titles, captions, settings and media fingerprints. It does not embed footage. Keep the originals. Open the project and add those files again to relink by SHA-256 fingerprint. Generated color cards can be recreated automatically. Nothing is saved automatically.

No. Clips are normalized into a common frame/audio format, transitions are assembled, then the finished composition is encoded. Lossy source quality cannot be recovered. Source metadata and extra tracks are not retained. Keep your originals.

Preview uses browser media playback and canvas. Export renders transitions, effects, overlays and the audio mix using a local 31 MiB FFmpeg engine. Several processing passes are used. Large dimensions and long projects can take several minutes or exceed device memory. Try Quick test at 480p before a large export.

A selected audio track uses sidechain compression driven by original video-track audio, making it quieter when that audio is present. This is signal-level ducking rather than AI speech detection. Preview does not model the sidechain compressor; the actual mixed export includes it.

SRT/VTT captions use edited timeline times. Titles have individual times, positions, sizes, colors, bold/italic styling, outlines, wrapping, alignment, optional background boxes and fades. Ready headline, lower-third, label and quote styles can be customized. Plain text and line breaks are supported. Liberation Sans covers Latin, Greek and Cyrillic; other scripts can show missing glyphs. Captions become permanent video pixels.

Cancel terminates the render worker while retaining your project/media. Undo/redo keeps up to 60 timeline/settings snapshots during the page session. Closing the page loses this history; save project JSON to continue later.

After rendering a video, download the actual soundtrack as WAV or 192 kbps MP3. It includes clip audio and the exported audio-track mix. You can also download a PNG of the current canvas preview.