How to use: 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.
Description
Compress the input with lz-string.
- Text Tools
- Because everything is computed client-side, LZString Compress is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using LZString Compress takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Run
Use cases
Common situations where LZString Compress helps:
- Compress the input with lz-string.
Parameters
This tool has no options — it works on the input alone.
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?
No. All processing happens locally in your browser; nothing is sent to any server.
Good to know
- Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.
- The worked example below could not be pre-computed for this tool (threw: function is not iterable (cannot read property Symbol(Symbol.iterator))); the interactive tool above still works normally.
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