Compare 41 free testing tools, free tiers, and developer deals. 2 require an application or qualification. Verified pricing for Checkly, Cypress Cloud, Postman, BrowserStack Percy, Chromatic and more.
What this name holds: Test runners, coverage, visual review and the hosted grids that execute a suite.
3 other names here answer “how do I check the code and the browser”, and each holds a different list: Browser Automation (5), Code Quality (20), Web Scraping (23).
We track 41 testing services with a free tier we hold as current and 4 without. This category has seen some movement — 18 pricing changes recorded across vendors.
| Vendor | Tier | Description | Verified |
|---|---|---|---|
| Checkly | Hobby | Synthetic monitoring — 10 uptime monitors, 1K browser check runs, 10K API check runs/month, 6 locations | 2026-09-02 |
| Cypress Cloud | Starter | Superseded: As of 2026-09-05, cypress.io/pricing reads: Starter is priced Free with no credit card required, and now includes 10 users, 500 test results / month and 100 prompt execs / month. The compare table prices Team at $799 / year and Business at $3,199 / year, and Cypress Cloud remains free to use for non-commercial open-source public projects. We are not publishing our stored Cypress Cloud terms beside it — our own pricing change record, discovered 2026-09-05, names them as the previous ones. Read what we recorded ↓ | 2026-08-22 |
| Postman | Free | Superseded: As of 2026-09-02, postman.com/pricing reads: The Free plan costs $0 per month and includes 50 AI credits, an API client, core tools, specs & mock servers, native Git, Collection Runner & Performance Testing runs, manual Flows, and 1,000 API monitoring requests per month. We are not publishing our stored Postman terms beside it — our own pricing change record, discovered 2026-09-02, names them as the previous ones. Read what we recorded ↓ | 2026-08-16 |
| BrowserStack Percy | Free | Visual regression testing — 5,000 screenshots/month, unlimited users and projects, 30-day build history. Note: BrowserStack browser testing is trial-only; only Percy visual testing has a permanent free tier | 2026-07-23 |
| Chromatic | Free | Visual regression testing by the Storybook team — 5,000 snapshots/month, Chrome-only, unlimited projects and collaborators, Git and CI integrations, UI version tracking | 2026-09-09 |
| Codecov | Developer | Code coverage reporting and analytics — Developer plan free for 1 user with unlimited public and private repos, 250 private uploads/month. Always free and unlimited for open-source. PR comments, status checks, patch coverage, bundle analysis included. Integrates with GitHub, GitLab, Bitbucket CI/CD | 2026-08-15 |
| LocalStack | Free | AWS cloud emulator for local development. Free Hobby plan: 30+ emulated services, 1 personal sandbox, CI testing, VS Code integration, requires registration. Community Emulator still available as open source. Starter plan $39/month (55+ services). Ultimate $89/month (110+ services) | 2026-08-25 |
| Testcontainers | Open Source | Open-source libraries for spinning up throwaway Docker containers in integration tests. Supports 50+ modules (databases, message brokers, AWS via LocalStack module). MIT license. Java, Go, .NET, Node.js, Python, Rust. Testcontainers Cloud bundled with Docker subscriptions (100 min/month on Docker Pro) | 2026-08-22 |
| Moto | Open Source | Open-source Python library that mocks AWS services for testing. Covers 100+ AWS APIs including S3, DynamoDB, Lambda, SQS, SNS, IAM, EC2. Apache-2.0 license. No cloud component, no auth required. Drop-in replacement for boto3 calls in tests | 2026-08-23 |
| AWS SAM CLI | Open Source | Official AWS Serverless Application Model CLI for local Lambda and API Gateway testing. Runs Lambda functions locally via Docker, emulates API Gateway, generates events. Open source (Apache-2.0). No AWS account required for local testing. Supports Python, Node.js, Go, Java, .NET, Rust runtimes | 2026-08-13 |
| Grafana k6 Cloud | Free | Superseded: As of 2026-08-28, grafana.com/pricing reads: Free tier includes all Grafana Cloud services with limited usage. Specifically, 10k active series per month for metrics, and 50 GB ingested per month for logs, traces, and profiles. 14 days retention. Community support. We are not publishing our stored Grafana k6 Cloud terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-07-31 |
| Appetize | Free | Test your Android & iOS apps on this Cloud Based Android Phone / Tablets emulator and iPhone/iPad simulators directly in your browser. The free tier includes two concurrent session with 30 minutes of usage per month. No limit on app size. | 2026-08-05 |
| Argos | Free | Open Source visual testing for developers. Unlimitedprojects, with 5,000 screenshots per month. Free for open-source projects. | 2026-08-04 |
| Bencher | Free | A continuous benchmarking tool suite to catch CI performance regressions. Free for all public projects. | 2026-08-24 |
| BugBug | Free | Superseded: As of 2026-08-28, bugbug.io reads: The Free plan includes: Unlimited local test runs, 15 tests, 4 test suites, 1 user, 1 project, AI Test recorder, Components, Edit & rewind, Screenshots, 7 days of tests history. We are not publishing our stored BugBug terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-08-04 |
| checkbot.io | Free | Browser extension that tests if your website follows 50+ SEO, speed and security best practices. Free tier for smaller websites. | 2026-08-07 |
| CORS-Tester | Free | A free tool for developers and API testers to check if an API is CORS-enabled for a given domain and identify gaps. Get actionable insights. | 2026-08-05 |
| everystep-automation.com | Trial | Desktop tool that records and replays all steps made in a web browser and creates scripts. 30-day free trial only — no permanent free tier. Paid licenses required after trial. | 2026-08-24 |
| gridlastic.com | Free | Selenium Grid testing with a free plan of up to 4 simultaneous selenium nodes/10 grid starts/4,000 test minutes/month | 2026-08-05 |
| katalon.com | Free | Provides a testing platform that can help teams of all sizes at different levels of testing maturity, including Katalon Studio, TestOps (+ Visual Testing free), TestCloud, and Katalon Recorder. | 2026-08-02 |
| Keploy | Free | Keploy is a functional testing toolkit for developers. Recording API calls generates E2E tests for APIs (KTests) and mocks or stubs(KMocks). It is free for Open Source projects. | 2026-08-04 |
| loadmill.com | Free | Automatically create API and load tests by analyzing network traffic. Simulate up to 50 concurrent users for up to 60 minutes for free monthly. | 2026-08-05 |
| lost-pixel.com | Free | Superseded: As of 2026-08-28, lost-pixel.com reads: Lost Pixel is sunsetting the product and building what's next. A 'Hobby Free' tier is available with 7,000 shots per month. Paid tiers include Startup ($100/mo, 40,000 shots), Business ($250/mo, 100,000 shots), and Scale ($670/mo, 300,000 shots). We are not publishing our stored lost-pixel.com terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-08-05 |
| pagegym.com | Free | Load behvariour and page speed analysis and optimization tool. The free plan provides 10 tests per day, 5 experiments per week, and 15 GB of maximum ingested data per month. | 2026-08-05 |
| qase.io | Free | Test management system for Dev and QA teams. Manage test cases, compose test runs, perform tests, track defects, and measure impact. The free tier includes all core features, with 500MB available for attachments and up to 3 users. | 2026-08-03 |
| seotest.me | Free | Free on-page SEO website tester. 10 free website crawls per day. Useful SEO learning resources and recommendations on how to improve the on-page SEO results for any website regardless of technology. | 2026-08-05 |
| snippets.uilicious.com | Free | It's like CodePen but for cross-browser testing. UI-licious lets you write tests like user stories and offers a free platform - UI-licious Snippets - that allows you to run unlimited tests on Chrome with no sign-up required for up to 3 minutes per test run. Found a bug? You can copy the unique URL to your test to show your devs exactly how to reproduce the bug. | 2026-08-06 |
| SSR (Server-side Rendering) Checker | Free | Check SSR (server-side rendering) for any URL by visually comparing the server rendered version of the page with the regular version. | 2026-07-12 |
| testingbot.com | Free | Selenium Browser and Device Testing, [free for Open Source](https://testingbot.com/open-source) | 2026-08-04 |
| Testspace.com | Free | A Dashboard for publishing automated test results and a Framework for implementing manual tests as code using GitHub. The service is [free for Open Source](https://github.com/marketplace/testspace-com) and accounts for 450 monthly results. | 2026-08-03 |
| tesults.com | Free | Test results reporting and test case management. Integrates with popular test frameworks. Open Source software developers, individuals, educators, and small teams getting started can request discounted and free offerings beyond basic free projects. | 2026-08-27 |
| UseWebhook.com | Free | Capture and inspect webhooks from your browser. Forward to localhost, or replay from history. Free to use. | 2026-08-05 |
| Vaadin | Free | Superseded: As of 2026-08-28, vaadin.com reads: Vaadin Core is free & open source, Apache 2.0 licensed. Maintenance is available as a paid service for up to 15 years per version. We are not publishing our stored Vaadin terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-08-06 |
| webhook.site | Free | Superseded: As of 2026-08-28, webhook.site reads: The free tier allows a maximum of 50 requests. URLs expire. We are not publishing our stored webhook.site terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-08-03 |
| websitepulse.com | Free | Various free network and server tools. | 2026-08-04 |
| kogiQA | Free | A web UI automation tool that functions without the need for selectors. Every developer gets 500 actions per month for free. | 2026-08-04 |
| Selenium Grid | Open Source | Open source browser automation and testing framework. Self-hosted grid for parallel test execution across browsers. No usage limits. | 2026-08-16 |
| BrowserStack | Open Source | Free for open source projects: unlimited testing on 3,000+ real browsers and devices, 5 users, 5 parallel sessions. Includes Live, Automate, App Live, and App Automate.Restricted to oss (BrowserStack Open Source) applicants — not generally available.Eligibility: Must be a public open source project | 2026-08-16 |
| Sauce Labs | Open Source | Free for open source: unlimited testing minutes on 3 parallel sessions across 96+ OS/browser combinations. Test results are publicly accessible.Restricted to oss (Open Sauce) applicants — not generally available.Eligibility: Public open source project required; Test results publicly accessible | 2026-08-16 |
| LambdaTest | Free | Now TestMu AI — the pricing page is titled "TestMu AI (Formerly LambdaTest)". Testing cloud for web and mobile. The pricing page is tabbed by product (KaneAI, Test Manager, Agent Testing, HyperExecute, Performance Testing, Live Testing, Automation, SmartUI) and free availability differs by tab. Test Manager publishes a $0 "Free Forever" plan: unlimited projects, advanced folder management, centralised test case management, unlimited test run creation and management, and 24×7 support; Test Manager Premium is $49/month billed annually. KaneAI Starter is $17/month billed annually. Checked 2026-09-02. | 2026-08-16 |
| Applitools Eyes | Free | Superseded: As of 2026-09-03, applitools.com/platform-pricing reads: The Starter plan costs $667 / mo (paid annually) and includes Unlimited users, 100,000 component checkpoints or 1,000 page checkpoints. We are not publishing our stored Applitools Eyes terms beside it — our own pricing change record, discovered 2026-09-03, names them as the previous ones. Read what we recorded ↓ | 2026-08-20 |
| Artillery | Open Source | Superseded: As of 2026-09-02, artillery.io/pricing reads: The free tier includes 30 reports/month. We are not publishing our stored Artillery terms beside it — our own pricing change record, discovered 2026-09-02, names them as the previous ones. Read what we recorded ↓ | 2026-08-13 |
| Gatling | Open Source | Community Edition: open source load testing tool (Apache 2.0). Self-hosted local execution with multi-language SDKs (Java, Scala, Kotlin, JS, TS). No usage limits. | 2026-08-16 |
| Locust | Open Source | Open source (MIT) Python-based load testing framework with distributed execution. Locust Cloud free tier: 200 VU-hours/month, max 100 concurrent virtual users. | 2026-08-15 |
| BlazeMeter | Free | Free Starter plan: 50 max virtual users, 10 tests/month, 20-minute max test duration, 1-week data retention, 1,000 API monitoring requests/month. | 2026-08-14 |
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