agent-browserAI Skills & Pluginsagent-browser is a native CLI with skills for AI agents to navigate pages, fill forms, extract data and take screenshots using accessibility-tree snapshots.CommercialSelf-hostedViews · 7 daysTop 5%
API Clients, Testing & QA
Browse unit testing, load testing, and automation testing tools for quality assurance teams.
13 results in API Clients, Testing & QA
Active Pro listings from this category appear first. Your sort applies within Pro and Free results.
agent-browserAI Skills & Pluginsagent-browser is a native CLI with skills for AI agents to navigate pages, fill forms, extract data and take screenshots using accessibility-tree snapshots.CommercialSelf-hosted16 views46,302 stars
ARTEMISAPI Clients, Testing & QAARTEMIS is an Apache-2.0 Android automation agent from Google. It drives real phones and emulators over ADB from natural-language tasks, with a web console, CLI, Python SDK and an MCP server for AI coding assistants.Open sourceSelf-hostedViews · 7 daysNo views in 7 days
BrunoAPI Clients, Testing & QAOpen-source API client for REST, GraphQL, gRPC, WebSocket and SOAP that saves collections as .bru or OpenCollection YAML files on disk. No account or cloud sync; teams share collections through Git and run them in CI with the bru CLI.Open sourceSoftwareFreemiumViews · 7 daysTop 29%
Views · 7 daysNo views in 7 days
HoppscotchAPI Clients, Testing & QAMIT-licensed API development platform with a browser app, Tauri desktop clients, a CLI test runner and a Docker-based self-hosted edition. Hoppscotch Cloud is free for individuals; Business and Enterprise plans add team features, SSO and audit logs.Open sourceSelf-hostedFreemiumViews · 7 daysTop 16%
InsomniaAPI Clients, Testing & QAInsomnia is a free, open-source desktop API client from Kong for designing, testing and debugging REST, GraphQL, gRPC and WebSocket APIs, with optional paid team collaboration plans.Open sourceSoftwareFreemiumViews · 7 daysNo views in 7 days
jscpdCode Editors & IDEsjscpd is an open-source copy/paste detector that finds duplicated code in 224 languages and fails CI builds when duplication passes your threshold.Open sourceSoftwareViews · 7 daysTop 3%
MiniStackAPI Clients, Testing & QAMiniStack is an MIT-licensed local AWS emulator that serves more than 60 services on port 4566, runs real PostgreSQL, MySQL and Redis containers, and works with the AWS CLI, SDKs, Terraform and CDK.Open sourceSelf-hostedViews · 7 daysNo views in 7 days
OpenCodeReviewAI Coding Assistants & Agent ToolingOpenCodeReview is an open-source CLI that reviews Git diffs or whole files with an LLM agent and produces structured, line-level comments.Open sourceSelf-hostedViews · 7 daysNo views in 7 days
PostmanAPI Clients, Testing & QAPostman is an API platform with a request client, shared collections, test scripts, mock servers and a CLI, available as a desktop app and on the web.CommercialWeb platformFreemiumViews · 7 daysNo views in 7 days
Quant-UXUI/UX Design & PrototypingQuant-UX combines a prototyping canvas with functional widgets, shareable usability tests, screen recordings, heatmaps and task analytics. It is GPL-3.0 software, free on quant-ux.com or self-hosted with Docker, MongoDB and SMTP.Open sourceSelf-hostedViews · 7 daysTop 29%
RapidAPIAPIs & IntegrationsRapidAPI is a public API marketplace where developers find, test and subscribe to APIs with one account and key, plus a private Enterprise Hub. Nokia acquired the Rapid technology and R&D unit in November 2024 and runs it as Nokia API Hub.CommercialWeb platformFreemiumViews · 7 daysNo views in 7 days
Views · 7 daysTop 29%
Shortlists for API Clients, Testing & QA
Explore collections with tools relevant to this category, grouped by deployment, source model or workload.
Open-source IT tools →
10 matching tools from this category
Self-hosted IT tools →
7 matching tools from this category
IT tools with an API →
7 matching tools from this category
How to choose api clients, testing & qa tools
This category gathers tools that check software before and after release: API clients for sending and debugging requests, automated UI and browser testing, local cloud emulators, and static analysis that catches duplicated or risky code. They help developers and QA engineers find defects early and reproduce them reliably. CI/CD platforms run these checks, but the tools here define and execute the tests themselves.
Who uses these tools
- QA engineers maintaining automated regression suites
- Backend developers designing and debugging HTTP APIs
- Frontend teams auditing code quality before merges
Capabilities to compare
- Request collections, environments and variable handling
- Browser and mobile UI automation for agents and scripts
- Local emulation of cloud services for offline tests
- Static checks for duplication and framework anti-patterns
- Command-line runs that plug into CI pipelines
Operating considerations
- Secrets stored in synced API collections
- Cloud account requirements for collaboration features
- Flaky UI tests that slow down every pipeline
- Emulator gaps compared with real cloud service behaviour
Selection checklist
- Confirm every check can run headless from the command line so the pipeline enforces it, not just laptops.
- Check where API collections and environment secrets are stored and whether local-only storage is available.
- Run the tool against your actual codebase and measure false positives before making it a blocking gate.
- Verify that test results export in a format your CI system and reviewers already read.
What belongs in this category: A product fits here when its main job is exercising, inspecting or verifying software behaviour, such as API requests, UI automation, emulation or code analysis, rather than building, hosting or deploying it.
API Clients, Testing & QA on iThub in figures
iThub lists 13 tools in API Clients, Testing & QA. 10 of 13 are open source, 7 of 13 can be self-hosted, 12 of 13 have a free, freemium or open-source pricing model and 7 of 13 offer an API.
- Tools listed
- 13
- Open source
- 10
- Self-hostable
- 7
- Free to start
- 12
- With an API
- 7
- Web app
- 6
- Desktop app
- 10
Typical use cases
- Debugging authentication headers on a new REST endpoint
- Testing cloud storage code against a local emulator offline
- Letting an AI agent click through a web app to verify a fix
- Flagging copy-pasted code blocks during pull request review
Trade-offs to model
- Cloud-synced API clients make team sharing easy, while local file-based clients keep requests and secrets in version control.
- End-to-end UI tests catch real user issues but run slower and break more often than API-level tests.
- Local emulators speed up feedback, though only tests against real cloud services prove production behaviour.
Common mistakes
- Committing API collections that contain live tokens or customer data to a shared workspace.
- Adding a static analysis gate to every pull request without tuning rules, so developers learn to ignore it.
Browse all testing and QA tools →Explore CI/CD tools →Browse open source CI/CD tools →
Decision resources
Continue the technical evaluation
Use the resources that match your decision stage. Profile data and linked sources were refreshed through November 10, 2026.
0 tools selectedCompare selected