capcut-cli

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Create and edit real CapCut / JianYing projects from the terminal — or any LLM agent.

Open the result in CapCut with every track still editable. capcut-cli works directly on the local draft store: JSON in, JSON out, with no upload, API, MCP server, or HTTP daemon.

raw recording → silence-aware cuts + styled captions → editable CapCut / JianYing draft

▶ Watch a captioned output example (60 seconds)

Install and open your first editable draft

Prerequisites: Node ≥ 18 (built-ins only — no native modules). Optional tools unlock specific commands: Whisper for caption, FFmpeg for render, ffprobe for automatic media metadata, and ANTHROPIC_API_KEY for translate.

npm install -g capcut-cli

capcut doctor
capcut quickstart my-first --video clip.mp4 --srt captions.srt
capcut info ./my-first/ -H

Result: a real local project with video and captions on editable tracks — not a flattened export. Open it in CapCut or JianYing to review, adjust, and render. The publish click stays human.

Useful? Star capcut-cli to help other editors and agent builders find it.

Build from source instead: git clone https://github.com/renezander030/capcut-cli && cd capcut-cli && npm install && npm run build (then npm link to expose capcut). Or run any command without installing: npx capcut-cli <command>.

Important

Upgrade before using older versions. Fixture bundles made with versions up to 0.17.2 may contain stable device identifiers and must be treated as unsanitised (#59). Versions up to 0.17.0 also contain local command/filter injection paths and unsafe temporary-file or credential-output behaviour. These issues are fixed in 0.18.0 and 0.17.1 respectively. Run npm install -g capcut-cli@latest and see the changelog for full details.

Disclaimer: This is an independent, community-maintained project. It is not affiliated with, sponsored by, or endorsed by CapCut, JianYing, or ByteDance Ltd. "CapCut" and "JianYing" (剪映) are trademarks of ByteDance Ltd. All product names, logos, and brands are the property of their respective owners and are used here only for identification (nominative) purposes.

An independent CLI for CapCut / JianYing that any LLM agent can drive — zero dependencies, no server, both namespaces in one binary.

JSON in, JSON out: every command reads and writes the local draft store directly, with no MCP server or HTTP daemon. On newer CapCut versions it detects and synchronizes every readable timeline target instead of assuming draft_content.json is the only source of truth. That gives any model (Claude, DeepSeek, GLM, Kimi) a deterministic boundary for inspection, building, subtitles, captions, translation, and long-form cuts.

Use it three ways:

• CLI — npm install -g capcut-cli, then capcut <command> <project>
• Library — import { loadDraft, lintDraft, saveDraft } from "capcut-cli" (typed, zero-dep)
• Queue runner — capcut serve reads JSONL jobs from stdin, for n8n / Make / Coze

Release notes

New in v0.20.0: subtitles now carry their styling across the draft boundary in both directions — export-ass writes [V4+ Styles], per-range override tags and --karaoke word timing, and import-ass keeps inline bold/italic/colour/size spans instead of flattening them to plain text, pinned by a round-trip test. The raw-recording pipeline closes: detect-silence finds dead air (with a --pad so no word gets clipped mid-syllable) and tts voices a script through any local TTS tool (piper, say, espeak-ng) straight onto an audio track. render finishes 0.19.0's fail-fast work — the audio filter chain is probed like the video chain (#91) — and --encoder unlocks hardware encoders. Plus harvest-enums --sync/--add for the whole library, and diagnose now captures sanitized evidence for the open store-layout questions (#50). No command was removed and no existing flag changed meaning. Full details in the changelog.

New in v0.19.1: every multi-range text highlight was being written past the end of the text it styled. styles[].range holds UTF-16 code units, not UTF-16LE bytes, so text-ranges, caption --karaoke, --highlight-words and any preset carrying text_ranges stored offsets twice as large as they should be — a plain add-text looked fine only because a full-span range clamps back to the end of the text (#85, measured by @hillimited across 38 app-authored drafts). Fixed everywhere those offsets are read or written, and lint --fix repairs drafts written by earlier versions (text-range-doubled). Full details in the changelog.

Commands

JSON by default (pipe to jq); add -H for a human-readable table. Pass --jianying to use the JianYing enum namespace. Run capcut <command> --help for full flags.

Group	Commands
Inspect	info · tracks · materials · version · lint
Browse / drill in	segments · texts · segment · material
Create	init · quickstart · compile (build a draft from a JSON spec)
Preview	render (low-res ffmpeg proxy — not CapCut's final render)
Add	add-video · add-audio · add-text (Wikimedia URLs supported, license-checked)
Edit / animate	trim · speed · volume · transitions · masks · text/image animations · easing curves
Templates	apply and extract reusable layouts · make-preset (portable text-style presets)
Subtitles & i18n	caption · import-srt · export-srt (line/word SRT + VTT) · translate (multi-language draft clone)
Effects	sfx · chroma (chroma key)
Long-form → short	cut · detect-scenes (ffmpeg scene-cut detection)
Automation	serve (stateless JSONL runner) · migrate · doctor · sync-timelines (8.7 mirror repair)

Full reference for every command, option, and exit code: docs/command-reference.md (简体中文: docs/command-reference.zh-CN.md).

Sponsor

capcut-cli is MIT and free forever. Sponsoring funds faster releases and same-week support for new CapCut / JianYing versions — and unlocks power-user extras:

• $5/mo · Supporter — sponsors-only release notes plus your name in BACKERS.md. Keep the project moving.
• $25/mo · Pro — invite to the private capcut-cli-pro repo: premium template and caption-style packs, the full Claude viral-shorts pipeline, ready-to-run compile specs, and early-access builds. Plus priority issue triage.
• $100/mo · Team — everything in Pro for up to 5 teammates, written commercial-use confirmation, your logo in this README, and priority fast-tracking of the features your team needs.

Become a sponsor →

Using capcut-cli at work? The Team tier pays for itself the first afternoon it saves your engineers.

How it works

CapCut/JianYing store each project as local JSON. capcut-cli loads that store, validates against a version-aware schema, applies your edit, and writes it back atomically (with a .bak). No project files are uploaded anywhere; nothing runs as a service. See docs/version-support.md for the CapCut/JianYing versions and schema flags it understands.

Docs & examples

• docs/command-reference.md — every command and flag (简体中文)
• docs/quickstart.zh-CN.md — 剪映快速上手 (JianYing-first quickstart, Simplified Chinese)
• examples/ — end-to-end recipes (VO alignment, serve automation, batch subtitle correction)
• docs/version-support.md · docs/jianying-encryption.md
• CHANGELOG.md · Releases — what's new
• draftcat — sibling project: governed AI pipelines (Go, MIT), same single-binary, no-API design

Trademarks

CapCut™ and JianYing™ (剪映) are trademarks of ByteDance Ltd. This project is unofficial and is not affiliated with or endorsed by ByteDance; the marks are used nominatively to describe interoperability.

License

MIT