AI · alternatives · 2026
24 alternatives to Testlemon
Low-code API testing and website monitoring tool
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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Hey HN! We’re open-sourcing highlight.io (https://github.com/highlight/highlight), a session replay and error monitoring tool. Highlight.io gives you a high-precision video-like replay of what users are doing when an error or exception occurs in your web app, along with a full-fledged error monitoring experience (similar to bugsnag, rollbar, etc..). The main value prop of highlight.io is that we help you understand the full context surrounding an error and allow you to drill down to the code path that a user invoked (i.e user clicked button X, sent network request Y, and…
2023 · github.com · its alternatives →
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Automated Penetration Testing for AI-Built Apps
2021 · replay.io · its alternatives →
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ValidBot▲73Comprehensive safety and performance inspection of your site
2021 · validbot.com · its alternatives →
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Preflight 2.0▲127Automated UI testing for your Websites & Web Apps
2020 · preflight.com · its alternatives →
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Your playground for writing custom API security tests
2023 · akto.io · its alternatives →
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Scandium▲51Automate web, mobile & API testing without coding.
2024 · getscandium.com · its alternatives →
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Hey HN. We’re Jay and Vadim from Highlight.io (https://highlight.io). We’re building an open source [1] monitoring platform for web applications. Today we’re excited to be sharing a performance tool we’ve been working on, which helps you inspect the latency of code execution from the client to the server. As engineers at past startups, we often had to debug slow queries, poor load times, inconsistent errors, etc... While tools like Jaegar [2] helped us inspect server-side performance, we had no way to tie user events to the traces we were inspecting. In other words, although we had…
2024 · github.com · its alternatives →
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Assertible▲50The easiest way to test and monitor your APIs
2016 · assertible.com · its alternatives →
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Checkbot finds SEO, speed & security problems before your website visitors do. Tests for broken links, duplicate content, invalid HTML/CSS/JavaScript, insecure pages & more. Test 100s of pages at once including local sites to keep on top of problems & stop critical issues going live.
2018 · checkbot.io · its alternatives →
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Uilicious 2.0▲100Low-code test automation for freelancers & solopreneurs
2021 · uilicious.com · its alternatives →
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Automated browser testing from the cloud
2014 · ghostinspector.com · its alternatives →
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DevTool.io▲38I built devtool.io over a weekend to solve a recurring pain point: discovering and keeping track of high-quality developer tools. I've lost count of how many times I've bookmarked a great CLI, API tester, or AI tool—only to forget where I saw it. DevTool.io is a minimal, searchable directory where developers can find and compare tools by category (CI/CD, Frontend, AI/ML, Databases, etc.), see what's trending, and browse curated picks. Each tool includes metadata like website, GitHub, category, and tags (open-source, freemium, etc.). Feedback, ideas, or tool suggestions are all…
2025 · devtool.io · its alternatives →
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A powerful automated security testing tool
2024 · geneau.gumroad.com · its alternatives →
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Capture.dev▲54Visual feedback and bug reporting for busy product teams
2024 · capture.dev · 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 →