FilmCraft Online Video Editor

Open the real FilmCraft Web editor

Launch the pinned official FilmCraft 0.8.0 Web build in a separate tab, hosted independently by FreeKitBox. Import clips, trim and reorder linked video/audio, adjust audio gain and export MP4 locally. The lightweight page does not load the editor until launch. Open FilmCraft editor · Official release and desktop downloads.

First launch downloads about 13.5 MB. Use a current desktop browser with WebGL2, gzip decompression, keyboard and mouse. The observed WebGL2 path uses a CPU compositor and cooperative single-threaded jobs; no real-time playback, long-form speed or universal codec guarantee is made.

Check local codec headers

Choose MP4/MOV or Matroska/WebM to inspect its sample-entry/CodecID metadata without uploading or saving the file. MP4 movie metadata is bounded at 8 MiB; Matroska scans the first 2 MiB and media payloads are skipped. Header tags do not validate bitstreams, profiles, encryption, duration or full file health.

Our original H.264/MPEG-4-audio MP4 test succeeded. MPEG-4 Part 2 (mp4v) and FFV1 (V_FFV1) imported metadata but returned unreadable in this build; the checker names those observed failures and suggests a verified H.264/AAC MP4 copy. Other combinations remain unknown, not silently declared compatible. mp4a alone is not a complete AAC/profile validation. Copy/download a local format report; it contains header observations, not media bytes.

Two-clip workflow and tested result

1. Import your own clips and create a sequence from a clip or File → New → Sequence.
2. Trim in/out edges with linked audio, reorder clips and inspect gaps.
3. Adjust Clip → Audio Options → Audio Gain; click inside the editor and permit browser audio before playback.
4. Choose Export with H.264/AAC and an MP4 destination, then inspect the downloaded file.

Reviewed 2026-10-18: two original 320×180/25fps H.264/AAC clips were trimmed and reordered, with one audio clip reduced about 6 dB. A real 125-frame MP4 download was independently decoded: five flash/tone markers aligned, and reduced amplitude was about half. This is one short desktop Chromium test, not a promise about all media or hardware.

Storage, license and sources

The checker stores no selected media. The separate editor can save recovery projects and media in browser OPFS; they can persist after closing the tab. Export a copy before clearing browser storage. No account or server upload is needed. The upstream project remains independently attributed; FreeKitBox is not the official ArtCraft or Adobe site. Exact-release Web architecture/API · Notices and attribution · MP4 codec registry · Matroska mappings.