Source
{"a":1,"a":1,"a":1}Output
Base64 string of Gzip/Deflate bytes
Encoding & Decoding
Deflate / Gzip Text Compressor (Base64)
Compress or decompress text in the browser with CompressionStream using Deflate or Gzip, and represent binary output as Base64. Useful for testing URL payloads, state serialization size, and transport formats. Requires browser support for compression streams.
CompressionDeflateGzip
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Zlib / Gzip Compressor
Compress or decompress text in the browser with CompressionStream using Deflate or Gzip, and represent binary output as Base64. Useful for testing URL payloads, state serialization size, and transport formats. Requires browser support for compression streams.
原文
0 字符
压缩结果（Base64）
0 Bytes
Use cases
- Pack larger JSON state into Base64 for transport experiments
- Verify a front-end decompression path restores the original text
- Compare payload sizes across compression formats
How to use
- Enter source text
- Choose Deflate or Gzip and compress
- Paste Base64 when you need to decompress
Example input and output
FAQ
Why does it say CompressionStream is unsupported?
Compression and decompression need native CompressionStream / DecompressionStream. Older browsers may lack them—try a newer browser.
Why is the output Base64?
Compressed output is binary. Base64 makes it easy to copy into URLs, configs, or API fields.
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