App
Video URL → MP4
Paste a video link, preview the metadata, pick MP4 — the file lands in the job folder.
Download GIF · 01-video-download.gifA REFERENCE WORKSTATION FOR AI VIDEO CREATORS
Prepare the source before the prompt. Search 12 registered sites, save permitted video as MP4 or MP3, and turn available captions into timestamped Markdown notes. The desktop app and fl CLI share one engine.
Recorded on the real v1.18.0 UI. Not a mockup, not a render.
12 registered search sites
Stars and downloads come from the GitHub API (release asset counts summed and cached for 10 minutes). They are repository statistics, not a claim about users, speed or creator outcomes.
FEATURE DEMOS
Twelve short clips recorded on the actual app and CLI. Each caption describes the inputs and results you will see — a record, not a script.
Paste a video link, preview the metadata, pick MP4 — the file lands in the job folder.
Download GIF · 01-video-download.gifSame paste flow with MP3 output — reference audio and timing tracks without the video payload.
Download GIF · 02-audio-extraction.gifReal YouTube search → Add → grid/list queue views, followed by an integrated search across 12 registered sources. Native/index attribution and blocked sources remain visible.
Download GIF · 03-search-and-queue.gifImport a real .txt list, download two original clips to the selected folder, then expand an official Blender Studio playlist and remove a queue item. The playlist segment shows metadata only.
Download GIF · 04-batch-and-playlist.gifThe transcript panel: caption language, metadata and timestamp toggles, Save .md / Copy-to-clipboard checkboxes — then a completion status with the real file path. No captions means an explicit unavailable result, never silent speech-to-text.
Download GIF · 05-captions-to-markdown.gifSelect an output folder, change quality and notification preferences, run an individual download and clear the isolated history. Then exercise real video/audio format-ID selectors on HLS sources and save an MP4.
Download GIF · 06-settings-and-history.gifThe published Windows v1.18.0 app checks the live release, confirms it is current, saves a check interval, and checks yt-dlp/FFmpeg status. No available update is fabricated; unsigned macOS updates use a verified DMG.
Download GIF · 07-update-center.gifMetadata, formats, caption languages and real keyword search — inspect sources before downloading.
flucto info · search · languages · formats Download GIF · 08-cli-inspect.gifA URL list becomes a timestamped job folder. Result JSON on stdout, progress NDJSON on stderr, and two real MP3 extractions — agent- and CI-parseable.
flucto download · batch urls.txt -f mp3 -c 2 -p -j Download GIF · 09-cli-batch-json.gifCaptions → frontmatter Markdown in Korean on stdout, then saved English notes. The clip shows the generated file name — real output, piped or written by --stdout/-o.
flucto md <url> -l ko --stdout · -l en -o notes Download GIF · 10-cli-media-markdown.gifA real YouTube channel resolves to a dedicated Blender-channel-md-* folder with two ordered caption notes — capped by --limit 2. No video is downloaded.
flucto channel to-md "@BlenderOfficial" --limit 2 -o notes Download GIF · 11-cli-channel-archive.gifVerify the release ZIP SHA-256, install the bundled CLI into a private prefix with managed Node/yt-dlp/FFmpeg, run doctor, then update in place. The Node download wait is labeled time-compressed.
install.ps1 -NoProfile · flucto doctor · update apply Download GIF · 12-cli-setup-update.gifDownload/extraction demos use original media and authored captions; search/playlist clips show public metadata. Some waits are edited out, so playback is not a speed benchmark. Site access, sessions and captions vary. Check rights before saving media.
INSTALL
Pick an installer from the latest release. Every asset ships on GitHub Releases with SHA256 checksums.
Flucto-<version>-x64-setup.exex64 NSIS installer. In-app auto-updates included.
Flucto-<version>-universal.dmgUniversal DMG for Intel + Apple Silicon. Unsigned — you may need to approve it in Privacy & Security on first run. Updates download a verified DMG for manual replacement.
Flucto-<version>-x86_64.AppImagex86_64 AppImage. No FUSE? Run with --appimage-extract-and-run.
Flucto-<version>-cli-setup.zipflucto / fl commands. Extract and run install.cmd (Windows) or bash install.sh (macOS/Linux) — no existing Node.js and no admin rights needed. The bootstrap downloads a private Node.js 24 runtime, verifies its SHA256, and provisions yt-dlp/FFmpeg under a private prefix.
PowerShell reserves fl for Format-List — use flucto or fl.cmd there; fl works in cmd.exe and POSIX shells. For an isolated install: install.ps1 -InstallDir DIR -NoProfile, or install.sh --install-dir DIR --no-profile.
Result JSON lands on stdout, progress events stream as NDJSON on stderr — Claude Code, Codex, and Cursor parse it as-is.
“Install the Flucto CLI from the GitHub release cli-setup.zip (it brings its own Node runtime), then turn this channel's recent captions into timestamped Markdown notes in ./notes: https://www.youtube.com/@handle”
The agent handles install through the final notes — you just read them
HONEST EDGES
Flucto is the preparation stage of an AI video pipeline: reference capture, audio extraction, caption notes. Rendering, upscaling, and editing stay in your other tools.
Markdown conversion is caption-based. If yt-dlp exposes no captions, Flucto reports the transcript unavailable — no Whisper or speech-to-text fallback. Check first with fl l.
A searchable video can still be deleted, private, DRM-protected, or region-locked at download time. Media that needs your own authorized session uses --cookies or --cookies-from-browser. No CAPTCHA solving, no regional bypass.
Search on X, Instagram, TikTok, and Vimeo, browser search on OK.ru and Threads, and public-index paths need local Google Chrome (or FLUCTO_CHROME_PATH). Other sites may use Chrome-based fallbacks. Contexts are temporary and anonymous; your logged-in profile is not read.
Downloads, captions, search, binary provisioning, and update checks all make network requests. The results stay in your local folders.
Flucto is a tool. Licensing, copyright, and platform terms for anything you save remain your responsibility to check.
Save reference video, extract an audio track, and keep caption notes beside your sources. Choose a desktop output folder or use the CLI to create dedicated job folders before your generation tools take over.