Compress documents online
The best free online tools to compress documents, ranked and filterable.
8 tools to compress documents
PDF26
Clean, easy-to-use PDF toolkit
AvePDF
Compress PDF
PDF Compressor
iLovePDF
Specialized PDF tools, user-friendly interface
ODT to Word
Free ODT to Word
PDF2Go
Comprehensive PDF management suite.
RTF to Word
Free RTF to Word
Side-by-side comparison
| Tool | Free | No signup | No watermark | Quality | Speed |
|---|---|---|---|---|---|
| PDF26 | Yes | Yes | Yes | high | medium |
| AvePDF | No | Yes | Yes | high | medium |
| Compress PDF | No | Yes | Yes | high | medium |
| PDF Compressor | No | Yes | Yes | high | medium |
| iLovePDF | Yes | Yes | Yes | standard | medium |
| ODT to Word | Yes | Yes | Yes | standard | medium |
| PDF2Go | Yes | Yes | Yes | standard | medium |
| RTF to Word | Yes | Yes | Yes | standard | medium |
Frequently asked questions
What's the best free tool to compress documents?
We rank tools by "Best match" — free, no signup, no watermark, and quality. The top card above is usually the safest starting point to compress documents.
Can I compress documents without signing up?
Yes. Toggle "No signup" above and you'll only see tools that let you compress documents straight from your browser, no account required.
Are these compress tools really free?
Most are fully free; some are freemium with paid limits. Use the "Pricing" filter to see only free tools, and check the limits on each card.
Will quality drop when I compress documents?
Quality depends on the tool. Filter by "Quality: High" to only see tools we've graded as preserving fidelity when you compress documents.