How to use: Rotate left

Rotate left is a free online Math & Statistics tool that rotates each byte to the left by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values 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.

Use Rotate left now →

Description

Rotates each byte to the left by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values.

  • Math & Statistics
  • Because everything is computed client-side, Rotate left is safe to use with sensitive data such as API keys, tokens or private logs.
Input Rotate left Output Runs 100% in your browser — your data never leaves your device.
Rotate left — Input → Output

How to use

Using Rotate left 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.
How to use · Rotate left 1 Paste your data intothe input box (or loadthe example). 2 Configure the optionsto match your targetformat or scenario. 3 Copy, download orinspect the output —it updates live as youtype.
How to use

Run

Use cases

Common situations where Rotate left helps:

  • Rotates each byte to the left by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values.

Parameters

This tool has no options — it works on the input alone.

FAQ

What is Rotate left?

Rotate left rotates each byte to the left by the number of bits specified, optionally carrying the excess bits over to the next byte. Currently only supports 8-bit values. It runs entirely in your browser, so your data stays private.

Is Rotate left free to use?

Yes. Rotate left 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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Rotate left → · Math & Statistics →

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