Dev tools · alternatives · 2026
24 alternatives to TestFiles.dev
Generate precise test files, byte by byte
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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FileFaker▲255Generate sample files of various types and sizes in seconds.
2025 · filefaker.com · its alternatives →
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FileMock▲7Hi HN! I built FileMock to solve a problem I constantly faced as a developer where I needed mock files for testing uploads, APIs, and storage systems. Key features: • Generates video, audio, image, and document files with precise size control • 100% client-side processing • Supports 20+ formats: MP4, PDF, PNG, MP3, DOCX, etc. • No registration required, just visit and generate Perfect for testing file upload limits, API endpoints, storage quotas, and CI/CD pipelines. I've been using it daily for the past few weeks and thought others might find it useful too. The entire generation…
2025 · filemock.com · its alternatives →
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Generate custom data & API to build apps in less than 30s
2021 · retool.com · its alternatives →
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Generator of static files(csv, jpeg, png, pdf) for testing file upload. It can generate csv and png files of any number of bytes! - sterrasec/dummy
2023 · github.com · its alternatives →
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Download free sample files in various formats (PDF, DOC, ODT, ZIP, MP3, etc.). Safe, virus-free test files and dummy files for development and testing. Verified content for all your project needs.
2023 · filesampleshub.com · its alternatives →
- 6SD
Web site to securely transmit files between browsers
2021 · sendfiles.dev · its alternatives →
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Run and test your HTTP requests. Git friendly, 100% local. - 4lejandrito/fetchbook
2023 · github.com · its alternatives →
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Free sample files to cater to all your testing purposes
2023 · filesampleshub.com · its alternatives →
- 10GE
Hi Hackernews, I’m Marvin from playrun.dev (https://playrun.dev), a platform for generating end-to-end tests for your application using just the URL. I recently worked on a project rewrite with a small team on a tight deadline. We needed to keep shipping while also writing tests for the application. We believed unit tests were a waste of time and decided e2e tests were the way to go, but doing so manually was still time-consuming and made shipping slower. Testing is one of those things we do as engineers that don’t have immediate ROI, and it was almost impossible to make the…
2024 · its alternatives →
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Keep CSV, JSON, and XML files safe while generating realistic test data for development and pipelines. See why it matters.
2019 · tonic.ai · its alternatives →
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Image files for Image-Upload testing. Contribute to ggtd/Image-files-for-Image-Upload-testing development by creating an account on GitHub.
2017 · github.com · its alternatives →
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Progressive Web App for generating mocked data from an OpenAPI specification - Fredx87/openapi-mock-generator
2020 · github.com · its alternatives →
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Build a spec-correct llms.txt file in minutes
Jul 2026 · loganmosby.com · its alternatives →
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📄 CLI that generates beautiful README.md files. Contribute to kefranabg/readme-md-generator development by creating an account on GitHub.
2019 · github.com · its alternatives →
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40+ dev tools that run 100% in your browser - no servers
2025 · nicheutils.com · its alternatives →
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There are plenty of good tools for load testing such as JMeter, Minigun, and plenty more - but they all have their own set of options to learn. I built this one to support a simpler workflow where you just paste your curl request (or other cli command) after your `spam` config (literally just `spam -r 2 -- curl www.google.com). It's pretty barebones but I'm 100% going to use it in my day to day - figured I'd share it here if it helped anyone else!
2023 · github.com · its alternatives →
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Online code formatting, testing & developer utilities
2025 · devtoolsfree.com · its alternatives →
- 21FC
Most file converter sites upload your files to their servers. File Converter Free runs everything client-side using WebAssembly — your files never leave your device. 215+ formats across conversion and compression, 75+ browser-based tools for PDF, dev utilities, text, calculators and network diagnostics — all available in 9 languages. Built this solo. What tools do you wish ran client-side but currently don't? https://file-converter-free.com/en/tools
Mar 2026 · its alternatives →
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WebSlurp▲9The Fastest Way to Test API Security Inside Chrome DevTools
Jul 2026 · webslurp.github.io · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →