LZString Compress

LZString Compress is a free online Text Tools tool that compress the input with lz-string instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.

How to use: LZString Compress →

Description

Compress the input with lz-string.

  • This tool runs the official CyberChef engine on the 26173 server. Avoid pasting secrets you would not send to any server.

How to use

Using LZString Compress takes three steps:

  1. Paste your data into the input box (or load the example).
  2. Configure the options to match your target format or scenario.
  3. Copy, download or inspect the output — it updates live as you type.

Use cases

Common situations where LZString Compress helps:

  • Compress the input with lz-string.
  • This tool runs the official CyberChef engine on the 26173 server. Avoid pasting secrets you would not send to any server.

FAQ

What is LZString Compress?

LZString Compress compress the input with lz-string. It runs entirely in your browser, so your data stays private.

Is LZString Compress free to use?

Yes. LZString Compress is free, unlimited and works without registration or installation.

Does my data get uploaded?

Is my data uploaded for this tool? — This tool is processed on our server by design; input is used only for the computation and is not stored.

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