中文EN
Sign inSign up
Submit a toolAffiliateFor vendors
CategoriesChinese platformsRankingsNewSubmit a toolAffiliateFor vendorsAbout usSign inSign up

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
CodeThreatCodeThreat applies AI to security analysis within development pipelines, automatically scanning pull requests and codebases to pinpoint real vulnerabilities. It filters out weak findings, provides repo‑level architectural summaries, and integrates with GitHub, GitLab, Bitbucket, and CI/CD across 27 languages.codethreat.comFreeCommand AICommand AI delivers AI‑powered in‑app assistance, offering product tours, nudges, surveys, and checklists. Its Copilot agent provides real‑time walkthroughs and co‑browsing, while API integration ensures context‑aware responses. The platform supports mobile/web, integrates with 24+ tools, and prioritizes non‑annoying interactions.command.aiFreeCommandAICommandAI is a CLI that generates shell commands with AI, automates tasks, and offers code assistance. It integrates with npm, GitHub, Discord, and JSONScript, streamlining scripting for developers, DevOps, and sysadmins.commandai.devFreeContextQA 2.0ContextQA automatically generates test cases from real user flows, self‑heals selectors, and analyzes failures across visual, DOM, network, and code layers. It supports web, mobile, API, ERP, SAP, Salesforce, and database tests with cross‑browser/device coverage and CI integration.contextqa.comFreeConvaiConvai enables developers to create 3D conversational characters that perceive vision, voice, and gestures, integrate with Unity, Unreal, or WebGL, and are enriched via document uploads. It offers multilingual support, realistic animation, and scalable deployment across web, mobile, VR, and AR.convai.comFreeCool Costume IdeasCool Costume Ideas is an AI platform that generates personalized Halloween costume suggestions based on user preferences. It offers a diverse range of creative options, making costume planning quick and accessible for all ages.coolcostumeideas.comFreeCrayEyeCrayEye lets users build multimodal vision prompts that fuse large‑language‑model outputs with real‑world sensor and API data. Users capture images, edit prompts with contextual info like location and weather, and share or remix them, supported by open‑source code.crayeye.comFreeCrestaCresta is a generative‑AI platform for contact centers that gives agents real‑time guidance, contextual suggestions, and translation across voice, chat, and email. It captures interaction insights for coaching, quality management, and performance dashboards, supporting multilingual deployment and data‑privacy compliance.cresta.comFreecultCult is an AI toolkit providing developers diverse components, templates, and starters for efficient AI project initiation. It simplifies AI application development through pre-designed templates, API generators, and developer tools.newcult.coFreeCurrux VisionCurrux Vision processes CCTV video for real‑time monitoring, enforcement, and safety. It automates object detection, classification, and tracking, and can autonomously control PTZ cameras. Supports edge, hybrid, and cloud deployments with NVIDIA GPU servers, delivering actionable metadata to operators.currux.visionFreecustomvision.aiCustom Vision enables developers to create custom image classification and object detection models by uploading labeled images or auto‑tagging unlabelled sets. Train, test, and deploy via REST API; supports quick iteration and suits teams lacking deep ML skills.customvision.aiFreeDatatureDatature unifies data labeling, model training, and deployment in one workflow. AI‑assisted annotation cuts labeling time up to tenfold. It supports classification, detection, segmentation, keypoint tasks, offers drag‑and‑drop training, hyperparameter tuning, visual evaluation, and edge/cloud deployment with secure collaborative workflows.datature.ioFreeDataviseDatavise provides generative AI, RAG and LLM integration with AI agents for automated workflows, combined with data architecture, governance and cloud AI infrastructure, BI visualization and compliance support to accelerate model deployment and data-driven decision-making.datavise.aiFreedebugcode.aiDebug Coding Problems by Codedamn is an AI tool that aids programmers by providing real-time support for various coding issues. It delivers detailed explanations and solutions, enhancing practical learning for both beginners and experienced developers.debugcode.aiFreedevActivity##devActivity is a GitHub‑integrated analytics tool that collects only commit and issue metadata to provide AI‑driven insights on cycle time, bottlenecks, and team performance. It automates reviews, retrospectives, and gamified engagement for developers and managers.devactivity.comFreeDigital EmperorDigital Emperor generates complete design specs for mobile and web apps, outputting user flow diagrams, sitemaps, and copy suggestions from a brief. It lets designers and developers prototype and launch faster while cutting agency reliance and costs.digital-emperor.comFreeDreamlyDreamly is an AI platform for content creators and fans that allows users to generate collections, manage subscriptions, and enhance audience engagement through messaging. It fosters a community where creators can monetize their work and fans can discover unique content.dream.lyFreeDyadDyad is an open-source AI app builder that enables local development with popular AI models via API integration. It supports existing IDEs and includes Supabase for authentication and database management, enhancing privacy and real-time feedback.dyad.shFreeEDITHEDITHis a comprehensive tokenization infrastructure that transforms physical assets like AI compute, real estate, and energy systems into digital tokens. It streamlines asset management and market access by providing a seamless platform for efficient transactions and integration.edithx.aiFreeellow talent marketplacesellow connects organizations with vetted developers worldwide, offering talent on demand, executive search, and global centers. AI matching cuts hiring to under 48 hours, supports flexible engagements, and delivers managed cloud, DevOps, and AI‑augmented engineering for rapid app development.ellow.ioFreeemojiu.ccEmoji World offers a random emoji generator, an emoji remover, and moon‑phase emojis. Organize by categories with tags for quick copy‑paste, aiding content creators, casual users, and developers for efficient communication.emojiu.ccFreeEvalsOneEvalsOne is an evaluation platform for developers and researchers to assess LLM prompts, RAG, and agents using rule‑based or LLM‑based methods, human judgment, and customizable evaluators. It supports multiple APIs and integrates with major AI frameworks.evalsone.comFreeFilm FanFilmFan is an AI-driven tool that offers personalized movie recommendations from a database of over 18,000 films. Users can track their viewing history and discover both popular and lesser-known films effortlessly through an intuitive interface.filmfan.aiFreeFindernestFindErnest delivers end‑to‑end technology services, scaling and securing digital operations through AI, cloud, data engineering, DevOps, and cybersecurity. It modernizes applications, builds APIs, ensures ISO 27001 compliance, and offers staffing solutions across AWS, Azure, Oracle, and Salesforce.findernest.comFree

Free tools in other categories

View all →
AI Image Generation→AI Writing Tools→AI Video Generation→AI Education→AI Marketing→Productivity→AI Recruiting & Jobs→AI Documents→AI Audio & Voice→AI Chat Assistants→Analytics & BI→AI Finance→