CapCut?

KINDAYou can build the valuable core, but the established product has meaningful operational complexity. Pick one narrow promise for v1.

BUILD FIRST

One specific customer type and one primary use case
A vertical slice that completes the main job without manual workarounds
Visible limits, review steps, and a fallback when an external dependency fails

LEAVE FOR LATER

Broad third-party integrations
High-scale collaboration, syncing, and permissions
Automation that can cause harm without human review

RESEARCH NOTES

What this tool actually does.

Checked 2026-09-06

CapCut is a cross-platform video editor by ByteDance available on iOS/Android, Windows/macOS, and web. Its core is a non-linear timeline editor with trimming, cropping, transitions, filters, effects, keyframing, speed control, audio mixing, and color tools, plus an asset library of music, stickers, and templates. AI features include AutoCut (auto-trim clips to music beats, speech pauses, or text prompts), AI speech-to-text auto captions with editable styling and speaker detection, text-to-video generation, an AI Lab (digital avatars, posters, video translator, dialogue scenes, character generator), background changer, and face swap. Template search exists on Mobile/Web; Desktop shows a limited built-in set. It cannot import/export other editors' project files (e.g., Premiere Pro). Free exports are watermark-free; a Pro subscription and AI credit packs unlock advanced tools. Feature avail

SOURCES

RESEARCHED BUILD PROMPT

Give this to your coding agent.

Build a self-contained web app that recreates a CapCut-style editing workflow: import local video clips, arrange them on a multi-track timeline with drag-to-place and snapping, razor-trim clips, add crossfade transitions, text overlays, and background music, then export an MP4. User-facing requirements: (1) a source-bin panel to import clips; (2) a timeline with playhead, zoom, ripple/trim, and per-clip properties (position, scale, opacity, speed); (3) a preview canvas with play/pause/scrub; (4) an auto-caption tool that transcribes spoken audio and renders styled subtitle tracks; (5) a simple audio mixer with volume and fades; (6) an export dialog for resolution and framerate. Technical approach: React front end; Canvas/WebCodecs preview with waveform rendering; IndexedDB for project persistence; captions via a client-side Whisper build; export via FFmpeg.wasm. Do not copy CapCut branding, proprietary assets, or its UI layout. Out of scope: accounts, cloud sync, AI text-to-video, avatars, face swap, mobile apps, and template stores. Include a README with setup steps, architecture notes, and known limitations (browser memory constraints on large files, WASM transcode speed, export size).

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