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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
ScaleScale AI delivers a full‑stack generative‑AI platform that integrates enterprise data, supports fine‑tuning, RLHF, and model safety evaluation, and enables secure AI agent deployment with compliance‑certified cloud infrastructure for regulated and government use.scale.comFree★ 4.6AidirsAidirs is a curated directory of AI tools, offering developers, founders, and enthusiasts a centralized platform to discover high-quality AI products, startups, and resources.aidirs.bestFree★ 5.0Google AI StudioGoogle AI Studio is an AI tool in the Developer Tools & APIs category, free to use. Available on the web. Official site: aistudio.google.com.aistudio.google.comFree★ 5.0TruVerifAITruVerifAI is a multi-model AI platform that validates and compares outputs across different AI engines. It centralizes testing with automated comparisons and configurable metrics for accuracy, bias, and reliability to support audit-ready, high-assurance decisions.truverif.aiFree★ 5.0KeychainKeychain is an AI-powered platform for the packaged goods industry, helping brands and retailers find and manage manufacturing partners quickly with access to 20,000 manufacturers and a database of 1 million SKUs. It streamlines workflows, ensures transparency, and optimizes supply chain management.keychain.comFree★ 5.0MCP ShowcaseMCP Showcase is an interactive playground for exploring and integrating Model Context Protocol APIs. It provides a safe sandbox for real-time testing, mock data configuration, and collaborative development without affecting production systems.mcpshowcase.comFree★ 5.0Firebase.studioFirebase Studio is a comprehensive AI workspace for developing backends, front ends, and mobile apps. It offers app prototyping, coding assistance, and deployment tools, and integrates seamlessly with version control platforms like GitHub and GitLab.firebase.studioFree★ 4.3PaperClippaperclip is an open-source, self-hosted AI orchestration platform for creating and managing autonomous companies and agent teams—providing role-based hiring, goal-driven task delegation, budgeting, audit trails, multi-tenant deployment, extensible LLM integrations, and monitoring dashboards.paperclip.ingFree★ 5.0In3Din3D lets users capture photorealistic 3‑D avatars from a phone camera in under a minute. Avatars export to FBX, GLB, USDZ and integrate via Web SDK, Unreal, Unity for instant deployment in games or apps.in3d.ioFree★ 5.0GPT ResearcherTavily offers a secure, high‑volume web‑access API that delivers real‑time search, extraction, and structured results. It includes caching, indexing, and content validation, preventing leaks and malicious data, and guarantees 99.99 % uptime for enterprise‑grade reliability.tavily.comFree★ 4.1bookbyanyone.comAn AI platform that converts a brief questionnaire into a 200‑page personalized book featuring the recipient’s name, interests, and photos. Users choose title, cover style, and format, and receive paperback or hardcover within 9‑13 business days.bookbyanyone.comFree★ 4.1AI Describe PictureDescribe Image & Picture extracts text, alt descriptions, and HTML snippets from PNG, JPEG, or WEBP files up to 2 MB, converting visuals into editable Markdown or code, auto‑tagging photos, and generating Flux image variants for creators, developers, and marketers.describepicture.orgFree★ 5.0AIaCAIAC Firefly is an AI-powered IaC generator that simplifies cloud infrastructure creation with Terraform compatibility. Streamline the setup of Amazon EKS environments using community-supported AI capabilities.aiac.devFree★ 5.0Airport PianosAirport Piano offers a searchable database of pianos in airports worldwide. Filters by IATA code, city, country, or last update. Users can add locations, view data in JSON, and plan visits or events.airportpianos.orgFree★ 5.0BugasuraBugasura unifies bug tracking, test and requirements management, and journey visualization. AI auto‑creates issues, links duplicates, and supports browser, widget, and screenshot reporters. It manages tests, imports from JIRA/Sheets, and integrates with GitHub, Slack, etc., with cloud or self‑host security.bugasura.ioFree★ 5.0ChartDBChartDB allows users to visualize database schema diagrams quickly through a single query. It supports multiple SQL databases, features a customizable editor for managing tables and relationships, and enhances collaboration with visually appealing diagrams.chartdb.ioFree★ 5.0ChatDOCChatDOC lets users ask questions about PDFs, DOCs, EPUBs, MD, and TXT while preserving layout, tables, formulas, and images. It returns answers with source citations, supports 25+ languages, and offers API/SDK integration.chatdoc.comFree★ 5.0ChurnPilotChurnPilot is an AI platform for B2B SaaS that predicts churn risk with high accuracy. It offers automated retention strategies, personalized engagement suggestions, and integrates with tools like Stripe and HubSpot for improved customer retention and satisfaction.churnpilot.aiFree★ 5.0clear.mlClearML AI Infrastructure Platform unifies GPU management, model development, and generative‑AI deployment across on‑prem, cloud, and hybrid setups, offering secure multi‑tenant provisioning, priority scheduling, fractional GPU allocation, integrated IDE, CI/CD, and streamlined workflows for data scientists, engineers, and DevOps.clear.mlFree★ 5.0Ebi.AiEBI AI is a cloud platform that lets businesses build, launch, and manage AI assistants via drag‑and‑drop. It includes NLP, human oversight, connectors to Zapier and Zendesk, and offers API access for automation to reduce call volumes and extend support hours.ebi.aiFree★ 5.0Emly LabsEmly Labs is a no‑code AI platform for building chatbots, predictive models and data pipelines. It offers integrated project management, secure compute, AutoML, data prep, visualization, external ingestion, industry templates, and cost‑management.emlylabs.comFree★ 5.0Glow AIGlowAI creates tailored skincare routines in seconds by asking for your budget, skin type, and concerns. It draws from a database of nearly 2,000 existing routines to suggest products that fit your needs, providing a quick, data‑backed solution.glowai.xyzFree★ 5.0gpt-oss playgroundgpt-oss playground provides open-weight demos of gpt-oss-120b and 20b for infrastructure testing, distributed and on-device inference, benchmarking, API integration, and reproducible research, with adjustable reasoning levels and visible-reasoning for diagnostics. Demo-only; validate outputs.gpt-oss.comFree★ 5.0HexabotA Open-source No-Code tool to build your AI Chatbot / Agent (multi-lingual, multi-channel, LLM, NLU, + ability to develop custom extensions)hexabot.aiFree★ 5.0

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