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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
Dream Interpretation AIDream Interpretation AI offers free, real‑time analyses using a symbol database and pattern‑recognition algorithms. It provides psychological, spiritual, and cultural explanations, tracks recurring themes, and features a global map for comparative dream studies.dream-interpretation.aiFree★ 3.0WaveSpeedAIWaveSpeedAI is an AI tool in the Developer Tools & APIs category, free to use. Available on the web. Official site: wavespeed.ai.wavespeed.aiFree★ 3.5GlitchGlitch is a collaborative web development platform that enables users to create, edit, and share web applications with real-time editing, instant project hosting, and GitHub integration, making it ideal for developers and educators.glitch.comFree★ 3.4LlamaIndexA data framework for building LLM applications over external data.llamaindex.aiFree★ 3.4Stable.aiStability AI supplies generative models for image, video, audio, and 3D creation. Dream Studio offers editing tools. Users may self‑host, use APIs, or cloud deploy, enabling compliant production of branded visuals, immersive environments, and music for marketers and game developers.stability.aiFree★ 3.4NPI LookupNPI Lookup uses AI to retrieve provider data from the CMS NPPES database, accepting natural‑language queries or NPI numbers. It validates IDs, offers real‑time updates, and supports advanced filtering for precise searches by type, taxonomy, or region.npilookup.ioFree★ 2.5GPTs HunterGPTs Hunter aggregates and categorizes custom GPTs from the GPT Store, providing a searchable interface by category, rating, or popularity. Users can submit GPTs for free and access an API for programmatic catalog queries, enabling rapid discovery for teams.gptshunter.comFree★ 2.1ContentfulContentful is a headless CMS that centralizes modular content management and API-driven delivery for web, mobile, and omnichannel channels. It offers AI-assisted content generation and localization, no-code personalization, developer APIs, analytics, and workflow governance.contentful.comFree★ 3.0Vast.AIVast.ai supplies on‑demand GPU instances, including NVIDIA RTX, H100, and Blackwell models, deployable in seconds. Developers can programmatically provision resources via CLI, SDK or API, and scale workloads with autoscaling, serverless inference, and dedicated InfiniBand clusters.vast.aiFree★ 2.7BookaboutBookAbout is an AI-powered tool that recommends books based on user preferences using Amazon's bookstore database.bookabout.ioFreeCode ConductorCodeConductor is a no‑code AI platform that turns plain‑English prompts into complete web and mobile apps, automatically generating front‑end, back‑end, APIs, databases, and authentication with built‑in security, CI/CD, and cloud deployment options.codeconductor.aiFreeCodeMateCodeMate AI is a VS Code plugin that translates natural‑language prompts into code, providing pull‑request reviews, bug and security analysis, refactoring, debugging, optimization, and documentation generation. It supports GitHub, Bitbucket, GitLab, Azure DevOps, and runs locally for secure, scalable operation.codemate.aiFreeFaciaFacia provides AI‑powered facial biometric verification, including liveness detection, photo‑ID matching, and 1:N search. It offers real‑time deepfake detection during video calls, age and iris analysis, cross‑platform SDKs, and on‑premise deployment for secure identity workflows.facia.aiFreeFlyte v1.3.0Flyte is an open‑source Python‑based workflow platform for AI, ML, and data teams, providing self‑healing pipelines with dynamic retries, state recovery, Kubernetes autoscaling, and native integration with Spark, Ray, BigQuery, and more, enabling efficient inference and training.flyte.orgFreeMachina SportsMachina Sports offers an AI‑powered sports operating system delivering live scores, xG, win probability, and player stats through a single API. It auto‑generates match‑event outputs and supports sub‑100 ms edge caching for broadcasters, betting, teams, and fan apps.machina.ggFreeMentioBubble lets designers and developers build web applications via visual programming. It offers drag‑and‑drop UI components, a responsive editor, built‑in database, API integration, real‑time preview, version control, hosting, and team collaboration for rapid prototyping, MVPs, and scalable services.getmentio.comFreeOnetabOnetab AI unifies team communication, content creation, API development, code deployment, and data analytics into one workspace, using AI agents to query Salesforce, create Jira tasks, and orchestrate workflows across 100+ integrations while meeting SOC 2, GDPR, and ISO 27001 standards.onetab.aiFreeQuills.aiQuills AI links databases and files for data consolidation. Users ask plain‑English queries, which it converts to SQL and returns results via chat, Slack, or widgets. It supports visual editing, direct SQL, and export to Excel or CSV.quills.aiFreeQuixl.aiQuixl is a no‑code platform for designing, deploying, and managing AI agents. It provides a Prompt Studio for versatile language models, a data pipeline with vector database support, and governance tools for tenants and subscriptions, enabling prototyping and workflow automation.quixl.aiFreeSocial360Bubble Built on Bubble is a visual web‑app builder that lets users design layouts, workflows, and database schemas via drag‑and‑drop. It supports API integration, conditional logic, responsive design, and custom domain mapping when the plan is upgraded.social360.aiFreeSoraWebuiSoraWebui is an open‑source web platform that turns text prompts into video using OpenAI’s Sora model. Users can create, view, or download videos directly in the browser, while developers can deploy, customize, or integrate the tool.sorawebui.comFreeYesicon##yesicon offers a vast library of 216,000+ high-quality vector icons in multiple languages and styles, suitable for developers and designers. Featuring 168 open-source icon sets, it provides a versatile resource for creative projects.##yesicon.appFree0ptikube0ptikube is a real-time visualization tool for managing Kubernetes clusters. It offers customizable dashboards, resource monitoring, and AI-driven insights to identify bottlenecks, enhancing infrastructure optimization and simplifying complex operations for DevOps teams and system administrators.0ptikube.devFreeAgentXAgentX is a multi-agent AI platform for building, training, and deploying conversational agents using a no-code visual builder or developer tools, supporting multiple LLMs, RAG knowledge connectors, omnichannel deployment, integrations, analytics, voice, and on-premise options.agentx.soFree

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