ONE LONG VIDEO.
FIVE VIRAL SHORTS.
ZERO EDITING.
APEXCUT hunts the most explosive moments in your footage with scene-change detection and audio-energy analysis, forges them into caption-burning vertical shorts, loads them with algorithm-ready SEO, and publishes straight to YouTube — all of it running inside your browser. No server. No uploads. No bill. You bring the content; your device is the foundry.
- Any URL or file
- links · MP4 · 20+ formats
- 0 servers
- runs entirely in your browser
- 5 shorts
- forged per pass
- A+ SEO
- titles · tags · hashtags
Feed the fire.
Your browser is the render farm. Nothing uploads, nothing is stored on any server — the footage stays on this device from drop to download.
Everything at the top of the food chain
No toy tools, no vendor lock, no license traps, no server bill. Every layer is free open-source or built into the browser itself — the heavy lifting happens on your device, so running it costs exactly nothing.
ffmpeg.wasm 0.12
The video engine compiled to WebAssembly — the same FFmpeg YouTube runs on, executing inside your tab
Web APIs stack
Canvas scene scanning, Web Audio energy mapping, requestVideoFrameCallback fps — native speed, zero cost
WORKERFS streaming
Sources mount read-only into the encoder — a 2GB file never loads into memory, bytes stream off your disk on demand
IndexedDB vault
Your sources, shorts and settings persist on your device. No database server — the browser IS the database
Google Identity Services
The sanctioned OAuth path — sign in with your own Google account, upload browser → YouTube directly
Community relays
Free cobalt instances fetch platform links for the browser — user-extensible list, failover built in
React 19 + Tailwind 4
UI system with shadcn/ui + Framer Motion physics — statically exportable to any free host
TypeScript 5
Strict typing across the entire pipeline — engine to UI
Four stages. Machine precision.
This isn't a template that chops your video into even slices. Every short is found by signal analysis, cut on real scene boundaries, and packaged for the algorithm.
FEED
Drop a file (MP4, MOV, MKV, WEBM, AVI and friends — up to ~2GB) and it opens instantly: nothing uploads, because there is no server. Or paste a link — direct files fetch straight in, platform links ride free community relays in your browser.
HUNT
A canvas scan maps every scene cut while a WebAudio-grade envelope reads the energy of every 250ms. Every possible window gets scored for hook strength, pacing and audio punch — then the best non-overlapping moments get locked and snapped to real cuts.
FORGE
ffmpeg.wasm precision-cuts and re-forges each moment in your tab: 9:16 / 1:1 / 16:9 / 4:5, cinema blur-pad or action crop, design-grade burned-in captions, loudness normalized to YouTube's -14 LUFS target, H.264 faststart.
LAUNCH
Every short ships with an SEO package — title, description, tags and hashtags generated offline in milliseconds. Preview in the armory, tweak anything, then publish straight from your browser to your YouTube channel via your own Google login. Or download and dominate every platform.
Questions, answered straight
No marketing fog — the honest mechanics of the machine.
Completely. There is no server to pay for — the entire application is static files on any free host (Cloudflare Pages, Netlify, GitHub Pages), and all processing runs in your visitors' browsers with ffmpeg.wasm. No database, no storage bucket, no bandwidth bill, no API keys required to forge shorts. The only optional credential is your own free Google OAuth Client ID for one-click YouTube publishing.
Nowhere. Files are opened by your browser and mounted read-only into the WebAssembly encoder — they never cross the network. Forged shorts are saved to your device's browser storage (IndexedDB) and download directly to disk. There is no server, no cloud, and nothing to breach — privacy by physics.
Three signals: a visual-fingerprint scan maps scene cuts (pacing), an 8kHz audio envelope reads energy and dynamics in 250ms buckets, and each candidate window's first three seconds are scored for hook strength. Windows are ranked, deduplicated, and their boundaries snapped to actual scene changes — so cuts land on beats, not arbitrary timestamps.
Every short gets a hook line, a ≤90-character title engineered for click-through, a full description with CTA and hashtag block, 8–15 searchable tags, and a category — generated instantly by a deterministic offline engine (no API keys, works airplane-mode). Everything is editable before you publish, and one click copies the entire package.
Yes — without any backend. Paste a free Google OAuth Client ID into Settings, sign in with your Google account when prompted, and uploads stream browser → YouTube directly over Google's official resumable endpoint. The token lives only in your page session. Without a Client ID, download and upload manually — the SEO package copies in one click.
The forge delivers what the footage allows — if a 60-second clip only has material for two shorts, you get two perfect ones. The 'Forge more' button only appears when there's genuinely unforged material left; when every usable moment is spent, the button disappears and the armory tells you why.
Honest physics: your browser encodes video in WebAssembly — a 720p Fast-tier short typically takes about a minute on a laptop. In exchange you get unlimited free renders, total privacy, and zero infrastructure. 'Fast 720p' is the iteration tier; 'Max 1080p' is the final-master tier. On hosts with cross-origin isolation the engine automatically switches to a multithreaded core for roughly 2–4× speed.