Keploy
Test Automation
AI-powered API test case and mock generator
Like Katalon, Keploy is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
We've curated 44 of the best alternatives to Katalon, ranked by feature overlap, topic similarity, user ratings, and popularity. Keploy, Testsigma, and Reliv lead the list as the closest matches.
Updated May 18, 2026
The list includes 1 free alternative, 38 freemium, 2 paid, and 3 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Katalon itself is freemium, which makes freemium alternatives the most natural starting point.
Many of these tools cluster around use cases like Quality Assurance, Software Testing, Test Automation, and Free + From $19/mo — the same problem spaces Katalon addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Katalon.
Ranked by compatibility score
Test Automation
AI-powered API test case and mock generator
Like Katalon, Keploy is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
Test Automation
AI-powered codeless test automation platform
Like Katalon, Testsigma is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
1 free and 38 freemium options.
2 paid options.
2 paid alternatives to Katalon on /tools/katalon/alternatives.
20 additional candidates
Keploy ranks as the highest-scoring alternative to Katalon, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 1 fully free and 38 freemium alternatives are available, including Keploy, Testsigma, and Reliv.
Keploy is similarly priced (freemium) and sits in the same category (Test Automation). View its detail page to compare features, integrations, and reviews side-by-side.
Top Test Automation alternatives include Keploy, Testsigma, Reliv, and EarlyAI. These tools share the same primary category and have meaningful topic overlap with Katalon.
Neither Katalon nor Keploy has user ratings yet — be the first to review either tool to help future visitors compare them.
Test Automation
Automate QA tests in minutes
Like Katalon, Reliv is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
Test Automation
AI-powered unit test automation for bug-free products
Like Katalon, EarlyAI is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
Test Automation
Automate browser tests with natural language
Like Katalon, Magic Inspector is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
Test Automation
World’s first end to end software testing agent built on modern LLMs
Like Katalon, Kane AI is in the Test Automation category. Both are freemium. Worth comparing on the detail page.
Test Automation
Boost quality with low-code test automation
Like Katalon, Mabl is in the Test Automation category. Mabl is free-trial, while Katalon is freemium. Worth comparing on the detail page.
Test Automation
Generate unit and integration tests with AI
Like Katalon, Tusk is in the Test Automation category. Tusk is paid, while Katalon is freemium. Worth comparing on the detail page.
Test Automation
Our AI tests your web apps and creates bug reports loved by developers.
Like Katalon, QA.tech is in the Test Automation category. QA.tech is paid, while Katalon is freemium. Worth comparing on the detail page.
Test Automation
AI-powered QA automation to save Engineering hours
Like Katalon, Verex is in the Test Automation category. Verex is free-trial, while Katalon is freemium. Worth comparing on the detail page.
Test Automation
AI-powered test automation from human instructions
Like Katalon, Alumnium is in the Test Automation category. Alumnium is free, while Katalon is freemium. Worth comparing on the detail page.
Test Automation
AI agents that supercharge UAT and catch critical bugs faster.
Like Katalon, Quell is in the Test Automation category. Quell is free-trial, while Katalon is freemium. Worth comparing on the detail page.
Software Testing
Elevate your testing with TestSprite.
TestSprite shares 2 topics with Katalon: Software Testing and Application Testing. Both are freemium.
Playwright Tests
Supercharge Playwright tests with AI-powered automation
ZeroStep shares 1 topic with Katalon: Software Testing. Both are freemium.
React Tests
AI copilot for software testing
Supertest shares 1 topic with Katalon: Software Testing. Both are freemium.
Ux Research Assistance
Swiftly validate UX solutions with relevant respondents.
Pathway shares 1 topic with Katalon: Free + From $175/mo. Both are freemium.
Test Cases
Create test cases with AI
QAEverest shares 1 topic with Katalon: Software Testing. Both are freemium.
Technical Documentation
Generate comprehensive documentation in minutes with AI.
TestScribe AI shares 1 topic with Katalon: Software Testing. Both are freemium.
Software Testing
Effortless AI-powered test automation
Hercules by TestZeus shares 1 topic with Katalon: Software Testing. Both are freemium.
Image Editing
Transform your face with AI in one tap
FaceApp is a candidate alternative to Katalon. Both are freemium. Review its detail page to compare.
Music Creation
AI composer for emotional soundtrack music
Aiva is a candidate alternative to Katalon. Both are freemium. Review its detail page to compare.
Math Problem Solving
Solve math problems step-by-step
Cymath is a candidate alternative to Katalon. Both are freemium. Review its detail page to compare.
Seo Ranking
AI-powered SEO software with actionable recommendations.
Canirank is a candidate alternative to Katalon. Both are freemium. Review its detail page to compare.
Audio Transcription
Multilingual Speech-to-Text API with Superhuman Accuracy
AssemblyAI is a candidate alternative to Katalon. Both are freemium. Review its detail page to compare.
33 more free/freemium alternatives listed below. Browse all Katalon alternatives ↓
39 free or freemium alternatives to Katalon on /tools/katalon/alternatives.
remove.bg is a candidate alternative to Katalon. Both are freemium. Review its detail page to compare.
