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Find and Replace

Text & Time

Batch replace text with safe literal and regular-expression modes.

Parameters
Input
Output
Auto-calculate
0 characters · 0 bytes

Use cases

When to use Find and Replace

Batch replace text with safe literal and regular-expression modes.

1Rename repeated identifiers in a document
2Replace mixed-case text
3Use capture groups to reformat log fields
4Generate stable IDs, dates, or text comparisons for test data
5Normalize documentation, logs, and field naming across teams
6Explain cron schedules and calculate IPv4 CIDR subnets

Guidance

Get reliable results

  1. 1Use literal mode when the source contains regex symbols
  2. 2Use $1 and $2 for capture-group replacement
  3. 3Keep a backup before applying results to source files
The page returns transformed text and never modifies files directly. Regex mode uses the linear-time RE2 engine.

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