ZIP Tools
ZIP File Size Calculator
Estimate compressed ZIP size before creating the archive.
100% Client-Side Privacy•No Registration Needed•Instant Free Export
Upload Files for Archive Processing
Secure 100% client-side ZIP processing in your browser. Private files never leave your device.
Click to upload or drag & drop files/archives
Supports ZIP, RAR, 7Z, TAR, GZ, and any document or media files
How to Use ZIP File Size Calculator
- 1Select files to add.
- 2View estimated ZIP size.
- 3Proceed to create archive.
Features & Capabilities
Estimate compression savings
File type estimation
Quick calculator
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