SHA1 Checksum Large Files with HTML5 Typed Arrays and Web Workers
SHA1 Checksum Large Files with HTML5 Typed Arrays and Web Workers launched on October 29, 2011 with 47 votes, #27 of 292 launches that month and more than 90% of that year's launches.
In plain words
SHA1 Checksum Large Files with HTML5 Typed Arrays and Web Workers is a web-based tool that computes SHA1 checksums for large files directly in the browser. It uses HTML5 typed arrays and web workers to process files efficiently without server upload. The tool is designed for users who need to verify file integrity locally. It leverages browser-based computation to handle large files while maintaining performance through parallel processing with web workers.
written from the facts on this page · September 2026
Does a similar job
all alternatives →- CMCalculate MD5, SHA-1 in your browser using HTML5 and WebWorkers2011 · browserhash.com · ▲19
- CSChecksum.sh verify every install script2022 · checksum.sh · ▲119
The pattern of downloading and executing installation scripts without verifying them has bothered me for a while. I started messing around with a way to verify the checksum of scripts before I execute them. I've found it a really useful tool for installing things like Rust or Deno. It's written entirely as a shell script, and it's easy to read and understand what's happening. I hope it may be useful to someone else!
I made tool that let's you see everything about any website2024 · v1.web-check.xyz · ▲411Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
I made a C program to create a vanity SHA-1 hash for a text file2025 · gist.github.com · ▲58
- ASAccelerating SHA256 by 100x in Golang on ARM2016 · blog.minio.io · ▲156
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