Documentation Index
Fetch the complete documentation index at: https://compresto.app/docs/llms.txt
Use this file to discover all available pages before exploring further.
Quick Start
Compression Options
Video Quality
| Quality | Description | Best For |
|---|---|---|
| Highest | Maximum quality, larger files | Archiving, professional use |
| High | Excellent quality (default) | General use |
| Good | Good balance of quality and size | Sharing online |
| Medium | Moderate compression | Social media |
| Acceptable | Higher compression, smaller files | Quick sharing, previews |
| File size | Target a specific file size | Size-constrained uploads |
When “File size” is selected, you can specify your target size in KB, MB, or GB. Compresto will adjust the quality to meet your target.
Video Resolution
| Resolution | Description |
|---|---|
| Same as input | Keep original resolution (default) |
| 4K (2160p) | 3840 x 2160 pixels |
| Full HD (1080p) | 1920 x 1080 pixels |
| HD (720p) | 1280 x 720 pixels |
| Max Width | Scale to a custom max width (preserves aspect ratio) |
| Max Height | Scale to a custom max height (preserves aspect ratio) |
| Max Long Edge | Scale the longer edge to a custom value (preserves aspect ratio) |
| Max Short Edge | Scale the shorter edge to a custom value (preserves aspect ratio) |
When using Max Width, Max Height, Max Long Edge, or Max Short Edge, you can enter a custom pixel value. The video will only be downscaled — if the source is already smaller than the specified value, the original resolution is kept.
Video Format
| Format | Description |
|---|---|
| Same as input | Keep original format (default) |
| MP4 | Most compatible format, works everywhere |
| WebM | Optimized for web, smaller file sizes |
| MOV | Apple’s format, good for macOS/iOS |
| GIF | Convert video to animated GIF |
| MP3 | Extract audio track as MP3 (learn more) |
Additional Options
Remove Audio
Strip the audio track from videos to reduce file size. Useful for:- Videos where audio isn’t needed
- Creating silent background videos
- Reducing file size when audio quality doesn’t matter
Preserve Transparency
For videos with alpha channels (transparent backgrounds), enable this option to maintain transparency in the output. Available for:- WebM format (always enabled)
- MOV format with alpha channel
When preserving transparency, only Highest, Ultra HD, and Full HD quality options are available.
Converting Video to GIF
When you select GIF as the output format, additional options appear:FPS (Frames Per Second)
Adjust the frame rate of the GIF (10-50 fps). Lower FPS means smaller file size but choppier animation.GIF Quality
| Quality | Description |
|---|---|
| Highest | Best quality, largest file |
| High | Great quality (default) |
| Good | Good balance |
| Medium | Moderate quality |
| Acceptable | Smallest file size |
GIF Dimension
Resize the GIF to reduce file size. Options include various percentage reductions or specific pixel widths.Tips for Best Results
- For web use: Choose “Good” quality and MP4 format for best compatibility
- For social media: Use “Medium” quality with appropriate resolution for the platform
- For archiving: Use “Highest” quality to preserve maximum detail
- For file size limits: Use the “File size” option to target a specific size
- For silent videos: Enable “Remove audio” to save additional space