Dev tools · alternatives · 2026
24 alternatives to My first open source project (micro check library)
Check types, regexps, presence, time and more...
This open source library provides validation checks for developers, including type checking, regular expression matching for postal codes and phone numbers, presence validation, and range comparisons. It verifies… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. My first open source project (micro check library) launched in 2015; newer entries below may have overtaken it.
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Regex library▲276A curated list of most commonly used regular expressions
2022 · uibakery.io · its alternatives →
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Regex Cheatsheet▲499A modern regular expression playground with live matching, visual railroad diagrams, rich notes, and easy sharing.
2020 · ihateregex.io · its alternatives →
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2018 · github.com · its alternatives →
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Typesafe, Composable Validation. Contribute to keithasaurus/koda-validate development by creating an account on GitHub.
2022 · github.com · its alternatives →
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Octavalidate▲61A client-side and server-side form validation library
2022 · octagon-simon.github.io · its alternatives →
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A very fast library for validating UTF-8 using AVX2/SSE4 instructions - zwegner/faster-utf8-validator
2019 · github.com · its alternatives →
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SIMD-accelerated UTF-8 validation for Rust. Contribute to rusticstuff/simdutf8 development by creating an account on GitHub.
2021 · github.com · its alternatives →
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Open sourcing Ezno's checker and trying out / previewing the JavaScript type checker today
2023 · github.com · its alternatives →
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Readble Regex▲130Regex REST API for easier codebase maintenance of regex
2025 · readable-regex-8d81b79167bf.herokuapp.com · its alternatives →
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The most comprehensive authentication library for TypeScript
2024 · github.com · its alternatives →
- 15AM
I made an open source, MIT license Typescript library based on some of the latest research that generates prompt injection attacks. It is a super minimal/lightweight and designed to be super easy to use. Keen to hear your thoughts and please be responsible and only pen test systems where you have permission to pen test!
2025 · prompt-injector.blueprintlab.io · its alternatives →
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Compliance intelligence for app developers
2022 · checks.google.com · its alternatives →
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This C library is part of a main project aimed at providing a reactive key-value (KV) database. The data is typed (numbers, strings, dates, or booleans) and can include formulas with references to other entries. Clients connected to this database receive a real-time data stream with updates to the subscribed keys, allowing them to react to changes and their dependencies. Essentially, it’s like building a distributed Excel, where data and formulas dynamically update across the system. I couldn’t find any libraries that offered the full set of features I needed for evaluating expressions, so I…
2024 · github.com · its alternatives →
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RegExr 2.0▲101Online tool to learn, build, & test Regular Expressions
2014 · regexr.com · its alternatives →
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Validates regex, typos, disposable, dns and smtp. Contribute to mfbx9da4/deep-email-validator development by creating an account on GitHub.
2020 · github.com · its alternatives →
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2015 · ruanyf.github.io · its alternatives →
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A simple utility for running exhaustiveness checks on Go "sum types." - BurntSushi/go-sumtype
2017 · github.com · its alternatives →
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Post about Avocado, a small library and pattern guide to help you with type safety and data validation in native JavaScript.
2015 · rafelsberger.at · 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 →