About Local File Tools

Local File Tools is a collection of free browser utilities for people who do not want to send files or pasted data to a server just to change them. You can resize and convert images, work with PDFs, remove hidden metadata, and format or validate JSON without creating an account.

How it's built

This is a static site with no backend or input-upload path. Image work uses browser APIs, PDF work uses JavaScript libraries loaded only when needed, and file-intensive operations are isolated from the interface. JSON formatting uses the browser's native parser in a background worker after you request it. Selected files and pasted text are not sent to Local File Tools or an API.

Clear limits

Browser-only processing trades remote server capacity for privacy and immediacy. Each tool explains its supported inputs, safety limits, browser requirements, and known caveats before you start. Invalid or unsupported input produces an error in the tab rather than being sent somewhere else for fallback processing.

Open source

The full source is public, so you don't have to take the privacy claims on faith. You can read exactly what each tool does, or run it yourself. Bug reports and pull requests are welcome.

View source on GitLab

Who's behind it

Local File Tools is designed and built by Jay at Centric Byte Software Solutions (opens in a new tab). Have a tool you wish existed, or a format that isn't supported yet? Suggestions go to developer@centricbyte.com.

Image tools

PDF tools

Photo privacy tools

Remove MetadataRemove EXIF, GPS, camera and document metadata without recompression.

JSON tools

JSON FormatterFormat, validate, and unescape JSON, including double-stringified data.