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Hazuu Tools

Find and Replace Text

Find and replace text with powerful search options.

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About Find and Replace Text

Find and Replace Text is a free browser-based editor that lets you search for any word, phrase, or regex pattern within a block of text and substitute it with new content — one match at a time or all at once. Unlike a basic text editor's built-in find dialog, this tool works on any device without installing software, accepting content you paste from documents, emails, spreadsheets, or code files.

The tool goes beyond simple string matching. You can flip on Match Case to differentiate "API" from "api", enable Whole Word to avoid hitting partial matches like finding "log" inside "dialog", or switch to Regex mode to express complex patterns — for example replacing every sequence of two or more spaces, extracting and rewriting dates, or stripping repeated punctuation. A live match counter shows how many occurrences exist as you type, and arrow buttons let you step through each one before committing a change.

All processing happens entirely in your browser using JavaScript. Your text is never sent to a server, stored, or logged, making it safe to use with confidential documents, private notes, or sensitive source code. There are no account requirements, no file-size limits, and no cost.

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Key Features

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Live match highlighting and counting

As you type in the Find field the tool instantly counts every occurrence and shows you which match is currently active — so you know what you are working with before clicking Replace.

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Step-through replacement

"Replace Next" advances one match at a time, giving you control over which occurrences to change and which to skip — useful when the same word needs different replacements in different contexts.

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Regular expression support

Enable Regex mode to use full JavaScript regular expression syntax. Replace all whitespace runs, reformat dates, strip punctuation patterns, or match any text structure you can describe with a pattern.

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Match Case and Whole Word toggles

Match Case treats uppercase and lowercase as distinct characters. Whole Word adds word-boundary anchors so "log" never accidentally matches inside "dialog" or "catalog".

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Word and character count in real time

A stats bar at the bottom tracks character count and word count as you edit, so you can monitor length while making replacements without switching to a separate tool.

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100% client-side privacy

Replacements execute in your browser with no network requests. Paste internal documents, source code, or personal text without any data leaving your machine.

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How to Use

01

Enter Your Text

Paste or type the text you want to search through.

02

Set Find & Replace

Enter the text to find and what to replace it with. Enable regex or case-sensitive options as needed.

03

Replace

Click "Replace All" to replace every match, or "Replace Next" for one at a time.

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Example

Replace every occurrence of an old product name with a new one across a multi-sentence paragraph. The match counter confirms how many substitutions were made.

Original text
WidgetPro is our flagship product. The WidgetPro team
ships updates every month, and WidgetPro customers
consistently rate it five stars. Contact us to learn
more about WidgetPro licensing.
After Replace All ("WidgetPro" → "Sprocket")
Sprocket is our flagship product. The Sprocket team
ships updates every month, and Sprocket customers
consistently rate it five stars. Contact us to learn
more about Sprocket licensing.
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Common Use Cases

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    Renaming variables or identifiers across copied code

    When you copy a code snippet and need to rename a variable everywhere it appears, paste it here and use Replace All to swap every instance precisely — including with Match Case on to avoid touching unrelated identifiers.

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    Correcting a repeated typo or misspelling throughout a document

    A misspelled name or term that appears dozens of times in a pasted document can be fixed in a single Replace All operation rather than hunting through the text manually.

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    Updating terminology in content drafts

    When a product, feature, or job title gets renamed, use this tool to update every reference in your draft copy before it goes to a designer or publisher — catching partial-word collisions with Whole Word mode.

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    Reformatting structured text with regex

    Convert date formats (e.g. MM/DD/YYYY to YYYY-MM-DD), collapse multiple spaces to one, or strip repeated punctuation using a regex pattern — the kind of structural cleanup that plain-text tools like case converters or text repeaters cannot do.

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    Sanitising pasted content before further processing

    Remove unwanted filler phrases ("click here", "learn more"), substitute placeholder tokens with real values, or normalise inconsistent spacing in content copied from PDFs or web pages.

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Frequently Asked Questions

What is the Find and Replace Text tool? expand_more
Find and Replace Text is an online tool that lets you search for specific text or patterns in your content and replace them with new text. It supports plain text, regular expressions, case-sensitive search, and whole-word matching.
Does it support regular expressions? expand_more
Yes. Enable the Regex option to use regular expression patterns in your search. This allows pattern matching such as finding all sequences of whitespace, matching date formats, or targeting any text structure expressible as a JavaScript regex.
What does Whole Word matching do? expand_more
Whole Word matching only finds the search term when it appears as a complete word, not as part of a larger word. For example, searching for "cat" with Whole Word enabled will not match "category" or "concatenate".
Is my text secure? expand_more
Yes. All processing happens locally in your browser using JavaScript. No data is sent to any server, stored, or logged — so confidential documents and private text never leave your machine.
How is this different from the Case Converter tool? expand_more
Case Converter changes the capitalisation of text (UPPERCASE, lowercase, Title Case, etc.) but cannot search for a specific word and replace it with a different word. Find and Replace Text is for substituting one piece of content with another, optionally using regex patterns. The two tools serve different editing tasks and are often used together.
Can I replace text with nothing to delete it? expand_more
Yes. Leave the Replace field empty and click Replace All to delete every occurrence of the found text. This is useful for removing unwanted phrases, tags, or repeated characters.
What happens when I use Replace Next instead of Replace All? expand_more
Replace Next substitutes only the currently highlighted match and then advances to the next one. Use it when different occurrences need different replacements, or when you want to review each change before applying it.
Is there a limit on how much text I can process? expand_more
There is no fixed limit. Because everything runs locally in your browser, you can paste large documents and the performance depends only on your device. Very large texts with thousands of regex matches may take a moment to process.