Features

Everything FLUX can do.

Playback

Hardware Decoding

D3D11VA and DXVA2 GPU-accelerated decode for H.264, H.265, AV1, VP9, MPEG-2, VC-1. Zero-copy pipeline. Automatic fallback to software decode for unsupported codecs.

4K & 8K Support

Smooth 4K/8K playback on modern GPUs. EWA Lanczos scaling with anti-ringing for perfect upscale quality.

HDR10 + Dolby Vision

Full HDR metadata passthrough. Hable tone mapping for SDR displays. Toggle in video filters panel.

Frame Stepping

Step forward or backward one frame at a time. Perfect for video analysis and precise seeking.

A-B Loop

Set loop start and end points to the exact frame. Loops seamlessly. Clear with one keypress.

0.01×–10× Speed

ScaleTempo2 pitch correction at any speed. Sounds natural at 2×, 3×, even 0.5×.

Resume Playback

Automatically saves position. Asks to resume on reopen. Stored per-file in SQLite database.

Formats

120+ Container Formats

MKV, MP4, AVI, MOV, WMV, FLV, WebM, TS, MTS, M2TS, MPG, VOB, RM, RMVB, ASF, 3GP, F4V, OGV, DIVX, and dozens more.

All Video Codecs

H.264, H.265/HEVC, AV1, VP8, VP9, MPEG-2, MPEG-4, VC-1, DivX, Xvid, WMV, Theora, MJPEG, ProRes, DNxHD, HAP, RealVideo, Cineform, and more.

All Audio Codecs

MP3, AAC, FLAC, Vorbis, Opus, WAV, WMA, AC3, DTS, TrueHD, ALAC, APE, Speex, AMR, G.711, and more.

Audio-Only Formats

FLAC, MP3, OGG, OPUS, M4A, AIFF, WV, TTA, APE, MKA, AC3, DTS, and more. With waveform visualizer.

Streaming

yt-dlp Integration

Paste a YouTube, Twitch, Vimeo, Dailymotion, or 1000+ other site URL. FLUX resolves the best quality stream automatically.

Network Protocols

Direct HTTP/HTTPS, HLS, MPEG-DASH, RTSP, RTMP streams. Authentication headers supported.

Adaptive Bitrate

HLS and DASH adaptive streaming. Automatic quality selection based on bandwidth.

Audio & Subtitles

15-Band Equalizer

25Hz to 16kHz parametric EQ. 10 built-in presets. Custom preset save/load. Real-time adjustment.

Audio Normalizer

Dynamic audio normalization (dynaudnorm). Balances quiet and loud content automatically.

Multi-track Audio

Switch between any audio track while playing. Supports dozens of simultaneous audio streams.

Audio Delay

Fine-tune audio-video sync with ±500ms slider and keyboard shortcuts.

Subtitle Search

OpenSubtitles API v3 integration. Search by title, auto-detect language, one-click download.

Subtitle Styles

Font, size, color, border, shadow all customizable. Full ASS/SSA style override.

Windows Integration

File Associations

"Open with FLUX" Menu

Right-click any media file in Explorer → Open with FLUX. Context menu registered for all media types.

Taskbar Controls

Thumbnail toolbar shows Previous / Play-Pause / Next. Progress shown on taskbar icon.

Jump List

Right-click FLUX in taskbar → recent files + Open File and Open URL tasks.

System Tray

FLUX lives in the tray. Control playback, see now-playing, minimize/restore from the tray icon.

Single Instance

Launching a second instance passes the file to the existing window. No duplicate processes.

Ready to try it?

Download FLUX for free today.