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Deflate Compressor

Compression · Free Online Tool

Deflate algorithm compress/decompress (native CompressionStream).

By EZ4Code TeamLast updated: 2026-10-29

Input Text233 chars

Compressed (Base64)

0 chars

Click "Compress" to run...

Zlib-Wrapped Deflate

Uses CompressionStream('deflate') which produces zlib (RFC 1950) framing.

Live Ratio

See the input/output byte counts and compression ratio instantly after each run.

Base64 Transport

Compressed bytes are base64-encoded so you can paste them anywhere, then decode back.

How to Use Deflate Compressor

1Enter or paste the text you want to compress.
2Select the compression algorithm (gzip, deflate, or brotli).
3Click compress to reduce the data size.
4Copy or download the compressed output.

Features

✓100% free — no signup, no subscription, no ads
✓Runs entirely in your browser — data never leaves your device
✓Fast and lightweight — instant results
✓Cross-platform — works on desktop, tablet, and mobile

Frequently Asked Questions

What compression algorithms are supported?

We support gzip, deflate, and brotli compression algorithms for text data.

Is there a file size limit?

Since tools run in your browser, the limit depends on your device memory. Most tools handle several megabytes without issues.

Can I decompress data produced by other software?

Yes. The decompression tools accept standard gzip, deflate, and brotli streams from any compliant source — command-line tools, web servers, or other libraries.

Why does the compressed output look unreadable?

Compressed data is binary, not text. Use Copy as Base64 or download it as a file — pasting raw compressed bytes into a text field will show garbled characters.