Bulk Find & Replace Tool

Need to replace text in multiple files online? You've come to the right place. Our bulk find and replace tool makes it easy to make the same exact text changes across dozens, hundreds, or even thousands of files instantly.

What is bulk find and replace?

Bulk find and replace (also known as batch text replacement) is a technique for updating strings of text across multiple documents at the same time. Instead of opening each file, searching for a word, typing the replacement, saving the file, and moving to the next one, you apply a set of rules to a large batch of files automatically.

Why use bulk find and replace?

If you need to update a company name, change an API URL, or migrate domains across a large project, doing it manually is tedious and error-prone. By using a multi-file tool, you save hours of work. Plus, our tool runs entirely in your web browser—your files are never uploaded to a server, ensuring complete privacy and maximum speed.

How to Find and Replace Text in Multiple Files

Using our bulk file editor is simple:

1. Select or drop multiple files into the upload area above.
2. Define your find & replace rules. You can add multiple rules to process different text pairs simultaneously.
3. Click Preview Changes to see how many files will be modified.
4. Click Apply Changes to execute the replacements.
5. Click Download All Files to get a ZIP archive of your modified files.

Supported File Types

Our tool supports a wide variety of text-based formats:

• Code files: .js, .jsx, .ts, .tsx, .py, .java, .cs, .cpp, .c, .h, .go, .rs, .php, .rb, .swift, .kt
• Data & Configuration: .json, .xml, .yaml, .yml, .csv, .toml, .ini, .env, .properties, .config
• Web & Text: .html, .css, .scss, .sql, .md, .mdx, .txt

Common Use Cases

Here are some scenarios where a batch find and replace is incredibly useful:

• Updating domains: Changing old-domain.com to new-domain.com across website files.
• Renaming variables: Updating variable names across exported codebase files.
• Updating API URLs: Swapping out an old endpoint URL for a new one in multiple configuration files.
• Replacing company/product names: Quickly rebranding across documentation and HTML files.
• Cleaning exported datasets: Normalizing specific values in CSV or JSON exports.

Frequently Asked Questions