// the find
cdgriffith/FastFlix
FastFlix is a free GUI for H.264, HEVC and AV1 hardware and software encoding!
FastFlix is a desktop GUI (Qt-based) that wraps ffmpeg and a pile of hardware/software encoders — x264/x265, AV1 via rav1e/aomenc/SVT-AV1, and rigaya's NVENC/QSV/VCE tools — so you can transcode video without memorizing ffmpeg flags. It's aimed at people doing Blu-ray/UHD rips and re-encodes who care about HDR metadata, not casual format converters.
It actually gets HDR10/HDR10+/Dolby Vision metadata passthrough right across multiple encoders, which is the part most ffmpeg GUIs either botch or skip. The encoder support matrix is genuinely wide (CPU and GPU paths for AVC/HEVC/AV1/VP9/VVC) with per-encoder settings panels instead of one generic options box. PGS-to-SRT subtitle OCR via Tesseract + MKVToolNix is a real, non-trivial feature, not just a checkbox. It's been maintained since 2019 with regular releases and installers for all three major OSes.
Full functionality depends on a chain of external binaries — ffmpeg itself, rigaya's NVEnc/QSVEnc/VCEEnc builds, Tesseract, MKVToolNix — that have to be sourced and sometimes manually pointed to in Settings; it's more an orchestration layer than a self-contained tool. The non-English UI is DeepL machine-translated with only occasional community corrections, so expect rough phrasing outside English. Hardware encoder setup is noticeably smoother on Windows (auto-download) than Linux/Mac (manual package install), so cross-platform parity is uneven. It's GUI-only — there's no CLI/headless mode, so it's not something you can drop into a batch pipeline or script.