Find and Replace — Multi-Rule
Apply multiple find-and-replace rules to any text in one pass. Each rule supports plain text or full regex mode with capture groups, case sensitivity control, and per-rule match counts. Free, private, and no signup required.
Why Use Our Find and Replace Tool?
Instant Multi-Rule Processing
All rules are applied to your text simultaneously in real time — no button to press. Add as many find-and-replace rules as you need and see the output update live.
Plain Text and Regex Support
Toggle each rule between plain text mode and full JavaScript regex mode. Use capture groups ($1, $2) in replacements, case-insensitive flags, and any valid regex pattern.
100% Private — No Upload
All processing happens locally in your browser. Your text never leaves your device. No account, no tracking, no data stored anywhere — completely private.
Per-Rule Match Counts & Error Feedback
Each rule shows exactly how many replacements it made. Invalid regex patterns are flagged with an error message inline — no guessing what went wrong.
Common Use Cases for the Find and Replace Tool
Bulk Code Refactoring
Rename variables, functions, or class names across a pasted code block in one pass. Apply multiple rename rules simultaneously without running a full IDE refactor.
Data Cleaning & Normalization
Clean exported CSV or JSON data by replacing inconsistent values, fixing encoding artifacts, and normalizing date formats — all with a single set of rules.
Template Variable Substitution
Replace placeholder tokens like {{name}}, {{date}}, and {{company}} in email templates, contracts, and documents with real values in one operation.
Commit Message & Changelog Cleanup
Standardize commit messages, fix typos, and reformat changelog entries by applying multiple text transformation rules to a pasted block of git log output.
Localization & Translation Prep
Replace hardcoded strings with translation keys, fix encoding issues in localization files, and normalize quotation marks across multiple languages simultaneously.
Writing & Editing Workflows
Apply a personal style guide in one click — replace passive voice constructions, fix common typos, standardize terminology, and enforce consistent capitalization.
Understanding Multi-Rule Find and Replace
What Is a Multi-Rule Find and Replace Tool?
A multi-rule find and replace tool lets you define multiple find-and-replace pairs and apply them all to a block of text in a single pass. Unlike a standard single-rule find-and-replace (like Ctrl+H in a text editor), this tool processes all rules sequentially — the output of rule 1 becomes the input of rule 2, and so on. This makes it possible to chain transformations, rename multiple things at once, and apply a complete text transformation pipeline without running the operation multiple times.
How Our Find and Replace Tool Works
The tool processes your text in three steps, entirely in your browser:
- Define your rules: Add one or more find-and-replace rules. Each rule has a find pattern, a replacement string, and options for regex mode and case sensitivity. Rules can be enabled or disabled individually.
- Instant browser-based processing: As you type in the input panel or modify any rule, all enabled rules are applied to your text in order from top to bottom. Your text never leaves your browser — all processing is local and private.
- Copy or download the output: The transformed text appears in the output panel. Copy it to your clipboard or download it as a .txt file. Each rule shows how many replacements it made.
What Each Option Does
- Regex mode (.*): Treats the find pattern as a JavaScript regular expression. Supports capture groups, lookaheads, character classes, and all standard regex syntax. Use
$1,$2in the replacement to reference capture groups. - Case sensitive (Aa): When enabled, the find pattern only matches text with the exact same casing. When disabled, "Hello" matches "hello", "HELLO", and "HeLLo".
- Enable/Disable toggle: Temporarily disable a rule without deleting it. Useful for testing the effect of individual rules on your output.
- Rule order: Rules are applied top to bottom. The output of each rule is passed as input to the next rule. Reorder rules by moving them up or down to control the transformation sequence.
Important Notes on Rule Ordering
Because rules are applied sequentially, the order matters. If rule 1 replaces "cat" with "dog" and rule 2 replaces "dog" with "fish", the final output will contain "fish" — not "dog". This is intentional and powerful for chained transformations, but requires care when rules interact. Use the enable/disable toggle to test each rule in isolation and verify the expected output before applying the full pipeline.
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Frequently Asked Questions About the Find and Replace Tool
A multi-rule find and replace tool lets you define multiple find-and-replace pairs and apply them all to a block of text in one operation. Unlike a standard single-rule find-and-replace, this tool processes all rules sequentially — the output of each rule becomes the input of the next.
When regex mode is enabled for a rule (click the .* button), the find pattern is treated as a JavaScript regular expression. You can use capture groups, character classes, lookaheads, and all standard regex syntax. In the replacement field, use $1, $2, etc. to reference capture groups from the find pattern.
Completely. All processing happens locally in your browser using JavaScript. Your text is never uploaded to any server, never stored, and never transmitted anywhere. The tool works entirely offline once the page has loaded.
Yes — 100% free, forever. No signup, no account, no premium tier, no ads. The find and replace tool is a fully free browser-based tool with no usage limits and no file size restrictions.
Yes. Rules are applied top to bottom, and the output of each rule becomes the input of the next. If rule 1 replaces "cat" with "dog" and rule 2 replaces "dog" with "fish", the final output will contain "fish". Use the enable/disable toggle to test each rule in isolation.
Yes. Enable regex mode for a rule, then use parentheses in the find pattern to create capture groups. Reference them in the replacement field with $1, $2, etc. For example, find "(\w+) (\w+)" and replace with "$2 $1" to swap two words.
When case sensitive is enabled, the find pattern only matches text with the exact same casing. When disabled (the default), "Hello" matches "hello", "HELLO", and "HeLLo". This applies to both plain text and regex modes.
Yes. Click the ON/OFF toggle button on any rule to disable it. Disabled rules are visually dimmed and skipped during processing. This is useful for testing the effect of individual rules on your output without losing the rule configuration.
There is no hard limit on either. The tool processes everything locally in your browser, so the only constraint is your device's available memory. In practice, dozens of rules applied to large text blocks process instantly.