nomoat / Categories / Developer tools software
Developer tools software
Small, specific developer tools tools, ready to use today. 1,592 products listed. Of these, 898 have a free plan, 60 sell for a one-off price, 1 carries proof such as verified revenue, update history or uptime.
- iTerm2
A free replacement for the Mac Terminal app with extra features for people who work in the terminal a lot.
Free · Developer tools · Developers
- Ito
Builds your app on every pull request, tests the affected user journeys and posts videos of any bugs it finds.
Since 2025
Developer tools · Developers
- JAIPilot
An IntelliJ plugin and CLI that writes, fixes and stabilises Java unit tests, then checks coverage locally.
Since 2026
Developer tools · Developers
- jilebi
Rent isolated cloud Linux machines for AI coding agents that sleep when idle, so you pay only while they run.
Since 2026
Pay as you go · Developer tools · Developers
- Jog
Cheaper hosted runners for GitHub Actions on private repos, billed per second, set up by changing one line of the workflow.
Since 2026
Free plan · Developer tools · Developers
- Joystick
Lets app and game developers change settings and run A/B tests remotely, without shipping a new build or waiting for store review.
Since 2024
Developer tools · Developers
- JP the Cat
A Mac menu bar app and widget that tracks tokens, spend and limits across AI coding agents such as Claude Code and Codex.
Since 2026
One-off payment · Developer tools · Developers
- Jsmon Subdomains
An API that returns known subdomains for any root domain, for bug bounty hunters, red teams and security researchers.
Since 2026
Free plan · Security and passwords · Developers
- JSON Query
A Mac app for storing JSON files and finding or reshaping data in them by asking questions in any language.
Since 2025
Developer tools · Developers
- JuxtaCode
A Mac app for comparing Git commits and branches, tracing file history and resolving merge conflicts.
Since 2023
One-off payment · Developer tools · Developers
- Kadeck
Web and desktop interface for browsing, troubleshooting, monitoring and governing Apache Kafka data streams.
Since 2023
Free plan · Uptime and monitoring · Developers
- Kafma
Desktop app for developers to inspect, debug and replay Kafka topics, schemas and consumer groups.
Since 2026
Free plan · Developer tools · Developers
- KaiMail
Forwards mail sent to your own domain to an inbox or a webhook, and lets you send from that domain over SMTP.
Transactional email · Developers
- Kaleidoscope
A Mac app for comparing text, images and folders and resolving Git merge conflicts, for developers and designers.
Subscription · Developer tools · Developers
- Kapso
API and dashboard that let developers send and receive WhatsApp messages from their own product.
Since 2025
Free plan · Developer tools · Developers
- Karada.ai
Turns an API spec into hosted MCP servers that stay in sync on deploy and sit behind one gateway for AI coding tools.
Since 2026
Free plan · Developer tools · Developers
- Karve HTTP Client
Offline Windows app for developers that gathers .http and .rest request files from their projects and lets them run and check each call.
Since 2026
One-off payment · Developer tools · Developers
- Kastra
Checks each AI agent action, like a shell command or API call, against policy and logs why it was allowed or blocked.
Since 2026
Free trial · Security and passwords · Developers
- Kayba
Watches your AI agent's errors and traces, then proposes code fixes as pull requests and tracks whether they help.
Since 2025
Developer tools · Developers
- Kedge
Hosting platform that puts sites, apps and containers on a public HTTPS URL from an SSH command or git push, with a database.
Since 2026
Free trial · Developer tools · Developers
- Keenable
Web search API with its own crawler and index, priced per thousand queries, for AI labs and agent builders.
Since 2026
Pay as you go · Developer tools · Developers
- Kelet
Monitors AI agents and LLM apps running live for engineering teams, works out why they break and proposes prompt fixes.
Since 2026
Free · Uptime and monitoring · Developers
- Keploy
Records real API traffic and replays it as tests with mocked dependencies so teams catch regressions in CI.
Developer tools · Developers
- Kestra
Workflow orchestrator where engineers define data pipelines, infrastructure jobs and AI tasks in declarative YAML.
Developer tools · Developers
- KeyEnv
Encrypted storage and sharing of environment secrets for dev teams, with audit logs and a command line tool.
Since 2026
Free plan · Security and passwords · Developers
- Keyforge
Issues and checks license keys for software you sell, hooked to your payment provider, with a portal for buyers.
Since 2025
Free plan · Payments and checkout · Developers
- Keygen
An API for adding license keys, device activation and secure update delivery to desktop and on-premise software.
Since 2016
Developer tools · Developers
- Keypost
A proxy that sits in front of MCP servers to apply access rules, rate limits and cost caps to AI agent tool calls.
Since 2026
Security and passwords · Developers
- KeyPub.sh
A public directory, used over plain SSH, that ties your SSH key to a verified email so other people can look you up.
Free · Security and passwords · Developers
- Keyshade
Stores and syncs environment variables and secrets for dev teams, with encryption, rotation and access control.
Security and passwords · Developers
- Kiln AI
Desktop workbench where teams test, evaluate and fine tune AI prompts and models, with an open source Python library.
Since 2024
Free plan · Developer tools · Developers
- KinoPipe
Video editing tools an AI agent can call over MCP or REST to trim, resize, caption and compress files.
Since 2026
Free plan · Video and audio · Developers
- KiviDB
A Redis-compatible in-memory database with vector and full-text search, which you can self-host or run on its managed cloud.
Since 2026
Developer tools · Developers
- Knit
An online workspace for writing, running and sharing AI prompts across several models, for teams building LLM features.
Since 2023
Free plan · Developer tools · Developers
- Knowl
Gives AI coding agents a memory that lasts between sessions and replaces facts when they change, with sources for each.
Since 2026
Free plan · Developer tools · Developers
- Kodus
AI reviews of pull requests that teams can run on their own servers for free or use hosted, bringing their own model API keys.
Subscription · Developer tools · Developers
- kogiQA
Automates web UI tests by pointing at what a person sees on screen rather than code selectors, with a recorder for people who don't code.
Since 2026
Developer tools · Developers
- Koppar
Describe a circuit in words and get a checked KiCad schematic, routed board, priced parts list and Gerber files.
Since 2026
Free plan · Design and images · Developers
- Korrero
Lets marketing and product teams edit in-app messages and banners without waiting for developers.
Since 2025
Free plan · Marketing and social · Software companies
- Kottos AI
Logs the cost, cache use, speed and errors of each AI model request so teams can compare providers and route cheaper.
Since 2026
Pay as you go · Uptime and monitoring · Developers
- Kraken.io
Shrinks JPG, PNG, WebP and other images through a web tool, API or CMS plugins so websites load faster.
Since 2013
Free plan · Design and images · Agencies
- KrakenD
API gateway you host yourself that routes and secures traffic to microservices and AI models, with a free open-source edition.
Free · Developer tools · Developers
- Kreya
Desktop app for calling and testing gRPC, REST, GraphQL and WebSocket APIs, storing requests as files in Git.
Since 2022
Free plan · Developer tools · Developers
- KubeDB
Runs and manages databases on Kubernetes, covering provisioning, scaling, backups and upgrades for platform teams.
Developer tools · Developers
- KubeSentry
Falco based Kubernetes security tool that spots attacks inside your own cluster, sends no telemetry and is paid for once.
Since 2026
One-off payment · Security and passwords · Developers
- Kubeterm
A desktop and phone app for engineers to browse, debug and deploy to Kubernetes clusters, with an AI helper.
Since 2025
Developer tools · Developers
- Kunobi
Desktop app for watching and controlling Kubernetes clusters and Flux or Argo CD deployments in one window.
Since 2026
Free plan · Developer tools · Developers
- Labelixa
Preview and debug ZPL thermal printer labels in the browser, make barcodes and render labels through an API.
Free plan · Inventory and stock · Shops and retail
- Laminar
Traces AI agent runs, groups their failures into patterns and helps developers debug and evaluate agents.
Free plan · Uptime and monitoring · Developers
- Lanes
Mac app for running several coding agents at once, giving each its own issue, branch and git worktree.
Since 2026
Developer tools · Developers
- Langtail
Lets product teams write, test, version and deploy LLM prompts in a spreadsheet style workspace, with guards against unsafe output.
Since 2023
Developer tools · Developers
- Languine
Automatically translates an app's language files from the command line and CI pipeline, for startup development teams.
Since 2024
Developer tools · Developers
- LangWatch
Platform for AI teams to trace, simulate and evaluate their LLM agents and keep track of model spend.
Uptime and monitoring · Developers
- Laranode
Open source panel for people who run their own Ubuntu VPS, handling sites, PHP, SSL certificates, databases and backups at no cost.
Free · Developer tools · Agencies
- Lark
A realtime database for web, mobile and game developers that works as a drop in swap for Firebase Realtime Database.
Since 2026
Subscription · Developer tools · Developers
- Lastest
Records UI tests, replays them in CI on each commit and blocks merges when screens change unexpectedly.
Free plan · Developer tools · Developers
- LastPing
Alerts you when AI agent runs, cron jobs or CI pipelines fail, stall or never start, with status pages.
Free plan · Uptime and monitoring · Developers
- Latitude
Watches AI agents in production, groups recurring failures and alerts you so a coding agent can fix them.
Free plan · Uptime and monitoring · Developers
- Layer
One API that lets developers of trading bots find matching markets, read prices and place orders on Kalshi and Polymarket.
Since 2026
Developer tools · Developers
- Lazy Blocks
WordPress plugin for building custom editor blocks with fields and HTML or PHP output, with no React or build step.
Free plan · Website builders · Agencies