3,929 tools
Free planCode
JungleJS is an open Jamstack framework built around Svelte and GraphQL. It pulls content from headless CMSes, git-based CMSes, or APIs, compiles static sites, and deploys to hosts such as Netlify, Vercel, or GitHub Pages with less boilerplate than hand-rolling a Svelte data layer.
Free planCode
The official site provides documentation, examples, and playground resources for building browser games with a simple component-oriented API.
Free planCode
Apache Kafka is an open-source distributed event streaming platform used for high-performance pipelines, stream processing, analytics, and data integration. The project site describes core capabilities such as low-latency delivery, elastic scaling, durable storage, and Kafka Connect integrations.
Free planCode
KaiMail is a developer-first email service for custom domains. It provides forwarding, ARC/DKIM signing, webhook delivery, SMTP sending, and mailing lists with a simple control panel, targeting teams that want domain email without running their own mail stack.
Free planCode
Kakoune is a selection-first, modal code editor focused on efficient text editing through composable commands and multiple selections. The official site documents installation, key bindings, and design philosophy for developers who prefer modal editing with explicit selection semantics.
Free planCode
Kali Linux is an open-source Debian-based distribution maintained by Offensive Security for penetration testing, security auditing, and ethical hacking. It ships hundreds of preinstalled security tools, documentation, community forums, and optional commercial training paths.
Free tier unknownCode
Kaminari is a personal Next.js starter template showcased on Vercel. The landing page positions it as a preconfigured project where common setup chores are already handled so developers can clone the repo and focus on application features instead of boilerplate wiring.
Free to startCode
Kane CLI is TestMu AI’s terminal agent for AI-driven browser testing. Developers describe flows in plain English, Kane CLI drives real Chrome locally, and runs return pass or fail results with replayable evidence packs—without maintaining selector-based scripts.
Free planProject management
Kaneo is open source, self-hosted project management with boards, Gantt charts, and GitHub integration. Kaneo Cloud offers managed hosting with a trial, while self-hosting remains free with SSO included according to the vendor site.
Free planCode
Karate Labs provides unified API, UI, and performance test automation built on the open-source Karate framework plus enterprise add-ons such as Karate Agent and async protocol testing. Products run on your infrastructure with IDE plugins, Xplorer desktop tooling, and governance-oriented enterprise packages.
Free trialCode
Kardow is an AI job board builder that hosts boards, imports jobs, charges for listings, and provides analytics, newsletters, and employer accounts. Plans add white-label branding, APIs, and higher import credit limits for operators running paid niche job sites.
Free planAssistant
Kasava drafts product requirements from your real repositories, Gong calls, and Notion docs, then pushes action items to Linear or Jira. It targets PMs and engineers who want PRDs grounded in existing code and conversations instead of blank-page specs.
Free tier unknownAssistant
Kashikoi is a simulation platform for testing AI agents against realistic scenarios before production deployment. Teams connect custom agents, run customizable simulations, track success metrics, and use insights to improve prompts, models, and edge-case coverage.
Free planCode
Kayak's ChatGPT integration lets travelers search flights, hotels, cars, and activities through conversational prompts inside ChatGPT. Kayak published the plugin announcement on its Travel Hacker blog with examples of natural-language trip planning using Kayak inventory.
Free planCode
It offers code completion, project management, debugger integration, and documentation lookup for Linux, Windows, and macOS workstations.
Free tier unknownResearch
Keen (Keen IO) is a managed event streaming and analytics platform for collecting, storing, querying, and embedding product metrics. It provides Streams and Compute APIs, persistent encrypted storage, and embedded visualization components for in-app analytics.
Free planCode
Keploy builds digital twins of production API traffic to generate tests, mocks, and regression checks for CI pipelines without application code changes. The open-source platform records requests with eBPF, replays dependencies, and offers AI-expanded API test generation.
Free trialCode
Keragon is a HIPAA-compliant healthcare automation platform with no-code workflows, AI agents, and 400+ integrations. Clinics and digital health companies automate intake, scheduling, billing, and patient communication while keeping data on Keragon’s compliant infrastructure.
Free planCode
KERNEL provides cloud browser infrastructure for AI agents and web automations, spinning up sandboxed Chromium sessions with stealth, managed auth, GPU acceleration, live view, and telemetry. Developers connect via CDP, WebDriver BiDi, Playwright, OpenAPI, MCP, or official SDKs in TypeScript, Python, and Go.
Free planOrchestration
Kestra is an open source declarative orchestration platform for data, infrastructure, and AI workflows. Teams define flows in YAML with thousands of plugins, event triggers, and language-agnostic tasks, with optional Kestra Cloud and Enterprise editions for managed or governed deployments.
Free to startCode
Kestrel AI builds deterministic workflow agents for platform engineering, turning plain-English descriptions into DAG automations for incident response, cloud provisioning, CI/CD, and developer requests. Engineers refine graphs visually or via Python SDK with 200+ actions across 40+ integrations.
Free planCode
The KeY Project provides formal verification and symbolic debugging tools for Java programs. Researchers and educators use KeY to prove correctness against JML specifications, generate tests, and teach program verification with downloadable tooling and course material.
Free planCode
Keycloak is an open-source identity and access management platform from the CNCF ecosystem. It adds single sign-on, user federation, social login, and fine-grained authorization to applications with admin and account consoles and support for OpenID Connect, OAuth 2.0, and SAML.
No free planCode
KeyHippo adds API key authentication and role-based access control on top of PostgreSQL Row Level Security, with first-class Supabase integration. It covers API key lifecycle, scopes, groups, roles, user impersonation, and high-throughput validation benchmarks for backend teams.
Showing 2,424 of 3,929 tools
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