offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

2-Pass Video Encoder

Professional 2-pass encoding for optimal quality at specific bitrates. Analyzes video first, then encodes for best results.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Source file

Files are processed locally in your browser using WebAssembly.

Saved FFmpeg presets (stored locally)

Saved presets

Preset name

Video Bitrate

Target video bitrate (e.g., 500k, 1000k, 2000k)

Audio Bitrate

Target audio bitrate (e.g., 96k, 128k, 192k)

Two-pass encoding analyzes the video in the first pass to determine optimal bitrate allocation, then encodes in the second pass for better quality.

Use when you need precise file size control or maximum quality at a specific bitrate. Takes twice as long as single-pass.

For 1080p: 2000-5000k, 720p: 1000-2500k, 480p: 500-1000k. Higher = better quality but larger files.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.