Fast Flix
FastFlix provides a graphical interface for hardware and software encoding with H.264, HEVC, and AV1 codecs.
About Fast Flix
FastFlix is an open-source graphical interface for video encoding, distributed through its GitHub repository. It uses FFmpeg under the hood for encoding work and supports H.264, HEVC, and AV1 codecs. Releases provide binaries for Windows, macOS, and Linux.
Users can select from software encoders including x264, x265, rav1e, AOM AV1, SVT AV1, VP9, and VVC, and hardware encoders including NVIDIA NVENC, Intel QSV, AMD VCE, VAAPI on Linux, and Apple VideoToolbox on macOS. Depending on the encoder, it handles audio, subtitles, covers, and HDR data such as HDR10, HDR10+, and bt.2020 colorspace.
It suits users who are comfortable installing and configuring FFmpeg, ffprobe, and in some cases separate hardware encoder packages, and who want a GUI to manage encoding settings. Help is available in the project wiki, with bug reports handled in the GitHub issue tracker.
Key features
- GUI for H.264, HEVC, and AV1 encoding
- Software encoding with x264, x265, VP9, VVC, AV1 encoders
- Hardware encoding via NVENC, QSV, VCE, VAAPI, VideoToolbox
- Copies HDR10, HDR10+, and bt.2020 data by encoder
- Handles audio, subtitles, and cover art tracks
Best for: People who want a GUI to manage FFmpeg-based software and hardware video encoding.
Good for
- Free and open-source GUI
- Supports many software and hardware encoders
- Handles HDR metadata, audio, and subtitles
- Provides Windows, macOS, and Linux binaries
Watch out for
- Requires separate FFmpeg and ffprobe installation
- Some hardware encoders need separate downloads and setup
- AV1 hardware encoding needs recent GPUs
Fast Flix at a glance
- Category
- Design & Creative › Video Editing & Animation
- Type
- Open-source project
- Pricing
- Free
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Video Editing & Animation
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Fast Flix FAQ
What is FastFlix?
FastFlix is a GUI for encoding videos with H.264, HEVC, and AV1 using FFmpeg and supported software and hardware encoders.
What do I need to use FastFlix?
You need FFmpeg and ffprobe version 4.3 or greater on your PATH, with 5.0+ recommended for most usage and some features.
Does FastFlix support hardware encoding?
Yes, it supports NVIDIA NVENC, Intel QSV, AMD VCE, VAAPI on Linux, and Apple VideoToolbox on macOS. Some encoders require compatible hardware and separate downloads.
Does FastFlix support HDR?
Yes, it copies bt.2020 colorspace on 10-bit or higher output and handles HDR10 and HDR10+ data depending on the encoder.
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