Find & Replace: Bulk Text Search and Replace Online

Manual find-and-replace in a word processor handles simple cases. But when you need to clean up 500 rows of CSV data, normalize inconsistent formatting across a document, or make the same structural change to hundreds of lines at once, a text-based find and replace tool with regex support saves enormous time.

When to Use Find & Replace

Fix bulk typos

Replace all instances of 'recieve' with 'receive' across a document

Clean CSV data

Remove trailing spaces or fix inconsistent date formats in exported data

Change formatting

Convert all UPPERCASE words to Title Case, or all quotes to a consistent style

Rename variables

Change a function or variable name across a snippet of code

Normalize whitespace

Replace multiple spaces or tabs with a single space throughout a file

Strip unwanted chars

Remove all phone number dashes, brackets, and spaces to get digits only

Plain Text vs. Regex Mode

In plain text mode, the search term is treated literally — every character matches itself. This is perfect for simple substitutions like renaming a word or phrase.

In regex mode, the search term is a regular expression pattern, giving you the power to match variable text, character classes, and repetitions. The replacement can use capture groups to reuse parts of the matched text.

Regex Patterns You'll Actually Use

\d+

One or more digits

Match: 42, 2024, 99

\s+

One or more whitespace characters

Match: spaces, tabs, newlines

\w+

One or more word characters (letters, digits, underscore)

Match: hello, user_123

^

Start of a line

^NOTE: matches lines starting with 'NOTE:'

$

End of a line

,$ matches a trailing comma at line end

(\w+)

A capture group — the match can be reused in the replacement as $1

Wrap a word in brackets using $1 in replace

[A-Z]

Any single uppercase letter

Match: A, B, Z

\d{4}-\d{2}-\d{2}

ISO date format YYYY-MM-DD

Match: 2024-06-15

Case Sensitivity

Case-sensitive matching means Error and error are treated as different strings. Case-insensitive matching treats them as the same. In regex, the i flag enables case-insensitive matching. When cleaning up user-generated text or log files where capitalization is inconsistent, case-insensitive mode saves you from writing multiple patterns.

How to Use the Find & Replace Tool

Paste your text

Drop your content into the input area — a CSV, a document, code, or any multi-line text.

Enter your search and replacement

Type what you want to find and what you want to replace it with. Toggle regex mode and case sensitivity as needed.

Preview and apply

See how many matches were found, then apply the replacement. Copy the result to your clipboard.

Find and replace text now

Plain text · Regex · Case-sensitive · Bulk replace · Free · No sign-up

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