# File Checksum

URL: https://pdfflare.com/tools/dev/file-checksum
Category: Developer Tools

File checksum online — drop any file, get MD5, SHA-1, SHA-256, SHA-512 in one pass. Verify download integrity. 100% browser-based, no upload, free.

## What it does

File Checksum Online — SHA-256, MD5 + More. MD5 + SHA hashes of any file.

Runs entirely in your browser. No file ever uploads to a server unless the tool explicitly requires server-side processing (LibreOffice for Office formats, Ghostscript for PDF compression). Free to use, no signup, no rate limits.

## Common search queries this tool answers

- file checksum online
- sha256 file checksum
- md5 file hash online
- verify download checksum
- file hash calculator
- sha256sum online
- file integrity checker

## How to use it

1. Open https://pdfflare.com/tools/dev/file-checksum
2. Follow the on-page instructions for file checksum
3. Your result is generated locally in the browser

## Other developer tools on PDFFlare

- [Password Generator](https://pdfflare.com/tools/dev/password-generator): Random, passphrase, PIN
- [UUID Generator](https://pdfflare.com/tools/dev/uuid-generator): v1, v4, v5, v7 + bulk
- [HMAC Generator](https://pdfflare.com/tools/dev/hmac-generator): HMAC-SHA256 webhook signatures
- [Verify Checksum](https://pdfflare.com/tools/dev/verify-checksum): Match a published hash to a file
- [Random Secret](https://pdfflare.com/tools/dev/random-secret-generator): JWT secrets, API keys, webhook keys
- [Hash Generator](https://pdfflare.com/tools/dev/hash-generator): MD5, SHA + HMAC signing

## About PDFFlare

PDFFlare is a free collection of online tools for working with PDFs, images, text, JSON, and developer utilities. All tools run client-side in your browser — no signup, no upload to our servers, no rate limits.

For the full site index, see https://pdfflare.com/llms.txt.
For the complete content dump in one file, see https://pdfflare.com/llms-full.txt.