Text Compressor

Compress text with gzip and encode as Base64 for transport, or decompress back to plain text. All processing happens locally.

Input

Text

Output

Compressed Base64 or decompressed text

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Compress Decompress

FAQ

What format is the compressed output?: gzip-compressed data encoded as Base64. The output is a safe text string you can copy and paste anywhere. If you have old compressed strings from before August 2026 (when the tool used LZ4), they will not decompress — the format was changed.
Why gzip?: gzip is widely supported, compresses well on text, and works natively in the browser with the CompressionStream API. Combined with Base64 encoding, you get a portable text string.
Is my data uploaded anywhere?: No. All compression and decompression happens locally in your browser.

Text or Base64 → Base64 or Text

Any case → Transformed text

Form fields → Cron expression

CSS → Formatted CSS