To Case Insensitive Regex

To Case Insensitive Regex is a free online Text Tools tool that converts a case-sensitive regex string into a case-insensitive regex string in case the i flag is unavailable to you. e.g. Mozilla/[0-9].[0-9] .* becomes [mM][oO][zZ][iI][lL][lL][aA]/[0-9].[0-9] .* 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: To Case Insensitive Regex →

Description

Converts a case-sensitive regex string into a case-insensitive regex string in case the i flag is unavailable to you. e.g. Mozilla/[0-9].[0-9] .* becomes [mM][oO][zZ][iI][lL][lL][aA]/[0-9].[0-9] .*

  • 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 To Case Insensitive Regex 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 To Case Insensitive Regex helps:

  • Converts a case-sensitive regex string into a case-insensitive regex string in case the i flag is unavailable to you. e.g. Mozilla/[0-9].[0-9] .* becomes [mM][oO][zZ][iI][lL][lL][aA]/[0-9].[0-9] .*
  • This tool runs the official CyberChef engine on the 26173 server. Avoid pasting secrets you would not send to any server.

FAQ

What is To Case Insensitive Regex?

To Case Insensitive Regex converts a case-sensitive regex string into a case-insensitive regex string in case the i flag is unavailable to you. e.g. Mozilla/[0-9].[0-9] .* becomes [mM][oO][zZ][iI][lL][lL][aA]/[0-9].[0-9] .*. It runs entirely in your browser, so your data stays private.

Is To Case Insensitive Regex free to use?

Yes. To Case Insensitive Regex 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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