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Free Developer Tools & APIs tools: 237 (2026)

237 tools in the Developer Tools & APIs category are marked as free, sorted by rating by default.

237 matching tools
Top ratedNewestName A–ZSee all Developer Tools & APIs tools
Line0Line0 automates backend development by generating production-ready services from natural-language descriptions, offering an in-browser editor with feature-specific chats, two-way GitHub sync, live API client with hot-reload and database preview, and built-in testing workflows.line0.devFreeLiner.aiLiner.ai is a cross‑platform no‑code ML app that trains models locally in minutes on images, text, audio, or video. It auto‑selects algorithms, offers ready‑to‑use templates, and exports models for web, mobile, or edge deployment.liner.aiFreeLite QueenLite Queen is an open‑source SQLite manager for your server, offering a command interface, plain‑English SQL via OpenAI, quick backups, table search, visual relationship view, responsive UI, and secure local settings.litequeen.comFreeliteLLMLiteLLM is an open‑source gateway that unifies access to 100+ LLMs through a single OpenAI‑compatible API, enabling provider fallback, cost tracking, tag‑based budgeting, guardrails, observability, and on‑prem or cloud deployment with a lightweight SDK.litellm.aiFreelluminyLluminy automates documentation for Python projects by generating docstrings quickly, facilitating developer onboarding and maintenance. It integrates with GitHub to document code files and offers automated suggestions for pull requests, enhancing team collaboration.lluminy.comFreeLocmatLocmat is an open‑source translation management platform supporting FormatJS and ICU message syntax. It offers an API and CI scripts for automated workflows, ML‑based translations with optional ChatGPT refinement, and seamless integration into web, mobile, and backend projects.locmat.appFreeLorem FacesLorem Faces is a customizable tool for developers to generate AI-generated profile pictures in various sizes (24 to 256 pixels). It offers five unique face options, facilitating quick integration as placeholders in web and app projects.loremfaces.netFreeLume AILume automates end‑to‑end integration for software teams, discovering schemas and proposing mappings across ERPs, databases, APIs, and flat files. It generates production‑ready dbt models, SQL, and quality rules deployable to Snowflake or BigQuery, shortening cycles and improving data quality.lume.aiFreemindbridge.aiMindBridge AI Platform uses unsupervised machine learning on 260 billion transactions to detect anomalies and policy breaches. It integrates with ERP and data‑lake systems, offering continuous monitoring, explainable results, and audit support that cuts manual review and shortens audit cycles.mindbridge.aiFreeMistlyMistly is an AI-powered domain management platform that handles searches, transfers, and secure transactions via natural language. It includes team collaboration tools, SEO content generation, and developer APIs for integrated workflows.mistlyai.comFreeNavoyNavoy is an AI travel agent that plans, books, and manages trips with personalized day-by-day itineraries, restaurant and activity recommendations, unified booking and trip-wallet checkout with live changes, group sharing, concierge chat, API integration, and real-time updates.navoy.ioFreeNeoBaseNeobase is an AI-driven database co-pilot that allows users to manage and visualize data through natural language queries across multiple databases. It streamlines operations and enhances decision-making for both technical and non-technical users.neobase.cloudFreeNexa SDKNexa SDK facilitates on-device AI model deployment across various hardware, optimizing resource use for multilingual tasks, speech recognition, and image processing. It provides a user-friendly CLI and comprehensive documentation for efficient integration of advanced AI capabilities.sdk.nexa.aiFreeNexa.aiNexa AI offers an on‑device platform that lets developers deploy vision, audio, and text models to NPUs, GPUs, and CPUs with one line of code. The SDK supports day‑zero deployment, multimodal inference, and optimizations for mobile, automotive, and IoT devices.nexa4ai.comFreeNovelNovel is a Notion‑style WYSIWYG editor built with Tiptap and Vercel AI SDK. It offers AI‑powered autocomplete via “++” or slash, bubble formatting, slash commands, drag‑drop images, and LaTeX support for technical content.novel.shFreeNozomioNozomio Labs offers Nia, an AI tool designed to enhance the software development lifecycle. It focuses on code understanding, automating quality assurance, security, and deployment, thereby improving collaboration between developers and AI technologies.nozomio.comFreeObviously AIObvious AI is a no-code AI tool for building and deploying predictive models in minutes without coding knowledge, with features including model building, deployment, monitoring, and integrations.obviously.aiFreeOfficeKubeOffice Kube delivers browser‑based cloud workspaces with preinstalled apps. Users automate tasks via pre‑built or IDE workflows, combine and share them across teams. Built on Kubernetes, it offers zero‑trust security, GitOps, automated backups, and embedded AI for docs, code, and troubleshooting.officekube.ioFreeOnlyBotsOnlyBots is a no‑code social platform for AI bot creators to showcase, share, and discover bots. It offers deployment, monitoring, version tracking, and community engagement tools, enabling collaboration and trend awareness.only-bots.aiFreeOpen SaaSOpen SaaS is an open-source framework for building scalable applications with React and Node.js, offering features like pre-configured authentication, payment integrations, TypeScript support, an admin dashboard, and easy deployment without vendor lock-in.opensaas.shFreepangeanic.comPangeanic is a governed multilingual AI platform that builds trustworthy, private, and compliant data pipelines for text, speech, image, and multimodal content. It offers task‑specific models, RAG, cross‑lingual search, and secure deployment on private clouds.pangeanic.comFreePiePie is an AI-driven autonomous QA testing tool that offers rapid, customized test creation for web and mobile applications. It simulates user behavior for approximately 80% test coverage, significantly reducing manual QA efforts.pie.incFreePipeless AgentsPipeless Agents is a serverless platform that turns video feeds into structured event streams. It extracts data from cameras and streams via configurable filters, supports lightweight agents for quick webhook, database, or messaging actions, and offers GDPR‑compliant privacy features.agents.pipeless.aiFreePitch PatternsPitch Patterns is an AI platform that analyzes calls in real time, scoring social skill markers and mood, delivering dashboards for managers and QA, comparing performance against leaderboards, and providing AI coaching for skill development across multiple languages.pitchpatterns.comFree

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