Features

Everything the everyday edit needs

A complete local-first workflow with free offline smart tools and optional online AI. Here is what is inside.

Multi-clip timelineCombine several videos into one edit. Drag clips to rearrange, drag their edges to trim or extend.
Split, trim, removeSplit at the playhead, trim start and end to the playhead, remove clips, and undo anything.
TransitionsBlend cuts with crossfades, dissolves, wipes, and dips to black or white.
Markers and loopingDrop markers on important moments, jump between them, and loop playback while you fine-tune.
Keyboard-first workflowSearch every editor action with the command palette, then split, trim, save, export, copy, paste, multi-select, and shuttle with shortcuts.

Text and image overlaysAdd titles, logos and stickers, then position them by dragging directly on the preview.
Picture-in-picture videoOverlay a second video on top of the main one, with its own timing and placement.
Captions with styleOutline, box or plain styles, custom fonts and colors, entrance and exit animations.
Subtitle importBring in existing .srt or .vtt files and they land on the timeline ready to adjust.

Color controlsBrightness, contrast, saturation, grayscale, sepia, blur and hue rotation, per clip.
Cinematic touchesVignette, film grain, and fade in or out from black for clean openings and endings.
Crop and orientationCrop free or to 16:9, 9:16, 1:1 or 4:3, rotate in 90 degree steps, flip horizontally or vertically.
Ken Burns motionSlow zooms and pans that bring still shots and long takes to life, with adjustable strength.

Music and sound effectsAdd MP3, WAV and other audio files on their own lanes. Trim, move, loop and mix them.
Voiceover recordingRecord narration from your mic while the video plays from the playhead.
Per-clip volume and speedSet volume and playback speed per clip, plus master volume, speed, mute and audio fades.
Noise cancellationReduce background hum, hiss and rumble per clip, with profiles tuned to protect speech.

Fast, local exportReview encoder support, project save state, recovery, and storage headroom in export preflight, then render locally to MP4 or WebM.
Your quality, your callChoose resolution up to the original, 30 or 60 fps, and three bitrate levels.
Frame snapshotsSave any frame as a PNG for thumbnails and covers.
Audio-only exportSave the finished soundtrack separately when you only need the audio.
Redundant recoverySession snapshots use two browser storage paths, with optional on-disk project autosave for stronger protection.
Recent projectsReopen up to five project file handles remembered only on this device, with clear saved and unsaved status.
Review and handoffAdd timestamped change, question, and approval notes; track a final checklist; then export or import a review pack without uploading footage.
Shared review workspacesSign in to invite account members, sync feedback with revision-safe updates, and keep project media entirely off the server.
Installable offline appInstall the PWA from a supported browser and continue core editing offline after the first successful load.
Privacy and system checkReview export, recovery and saving capabilities, then download a content-free diagnostic report if you need help.

Remove silencesFind quiet gaps and cut them out automatically without sending media anywhere.
Find shot changesDetect scene boundaries in the browser, then mark or cut at them.
Shorten an editBuild a tighter 15, 30, 60, or 90 second version from the liveliest sections.
Beat and level toolsMark musical beats and balance clip volumes locally.
Adaptive recipesCombine local edits for vertical social clips, YouTube videos, talking heads, and teasers, with an impact preview before anything changes.
Portable workflowsSave successful command sets, export or import workflow packs, and review device-local automation activity.

Local-only modeOn by default. It blocks cloud AI chat and transcription while core editing and offline tools keep working.
Edit in plain languageSign in and describe the change you want; Trimzio shows an impact preview and waits for approval before applying the undoable plan.
Automatic transcriptionCreate a timed transcript and captions after approving the audio transfer.
Transcript-based editingFind spoken phrases, remove filler words, and generate caption lines from the transcript.
Clear privacy boundaryAI chat sends prompts and project context online; transcription sends audio, never the video picture. Core editing remains local.

See it for yourself

The fastest way to understand Trimzio is to open it. There is even a sample clip waiting inside.