OpenAI 出品的对话式 AI 助手

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Fraud and trust scoring for an IP, email, phone, domain or device in one call, plus authorization and Web Bot Auth verification for AI agents. 1,000 lookups/month free, no card required.

— Open Graph (OG) social preview image generation API. Generate dynamic 1200×630 images for Twitter, LinkedIn and Facebook via URL params, edge-cached on Cloudflare Workers. Free tier: 1,000 renders/month. Paid plans from $12/month. ⬆️ Back to Top

Collaborative solution to visually build and manage cloud infrastructures from end-to-end.

Created by Vercel, v0 generates copy-and-paste friendly React code using shadcn/ui and Tailwind CSS. It uses a credit system, providing 1,200 starting credits and 200 free credits monthly. ⬆️ Back to Top

Semantic image search API across 9 free photo sources (Unsplash, Pexels, Pixabay, Kaboompics & more), 9M+ photos under one JSON schema instead of one integration per source. Plain-language queries, reverse image search, filters on color, orientation and license. CORS is open on read endpoints, so it

Secure Video and Web conferencing add-ons available. The free plan is limited to 40 minutes.

Password manager with built-in email aliases, 2FA authenticator, sharing and passkeys. Available on web, browser extension, and mobile app and desktop.

Build & scale AI models, Develop, train, and deploy AI applications, free plan: public projects, 5Gb storage, basic instances.

Unlimited public repositories and unlimited private repositories (with unlimited collaborators). Includes CI/CD, Development Environment, Static Hosting, Package and Container hosting, Project management and AI Copilot

Scan AWS and Azure for cost waste with 92 automated checks including idle NAT gateways, gp2 volumes, and over-provisioned instances. Get savings estimates in a read-only, developer-first CLI. Free tier covers up to 5,000 resources per scan on one AWS account. Paid tiers add resource IDs and exact re

Free web search and fetch API with rate limits. ⬆️ Back to Top

A high-speed AI code completion plugin for VS Code, JetBrains, and Neovim. The free tier provides unlimited inline completions with a focus on ultra-low latency.

Free AI website creator from Mozilla, create a beautiful website for your business from a few simple inputs. Free custom domain, no credit card needed.

Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides unlimited API calls, documents, custom types, assets, and locales to one user. Everything that you need for your next project. Bigger free plans are available for Open Content/Open Source proje

Unlimited public and private Git repos with up to 5 collaborators. Includes CI/CD, Static Hosting, Container Registry, Project Management and Issue Tracking

Unlimited private and public repositories. Free forever. Powered by GitLab & Sapphire. Includes CI/CD, Static Hosting, Container Registry, Project Management and Issue Tracking.

Parsivex scans your AWS account for idle EC2, unattached EBS, oversized RDS, stale snapshots, NAT gateway overuse etc. Free tier provides a monthly scan for one AWS account and returns total monthly waste plus a category breakdown. Paid plans give access to itemized findings and scheduled re-scans.

Started as an e-mail provider but now provides a suite of services, some of which have free plans. List of services having free plans : ⬆️ Back to Top

An AI-powered site builder and editor that generates production-ready frontend code from text prompts, sketches, or resumes. Features include native Android (APK) export and a free tier with 5 generations per month (unlimited via custom Gemini API key).

Replacing Forestry.io. Open source Git-backed headless CMS that supports Markdown, MDX, and JSON. The basic offer is free with two users available.

Real-time chat with a unique email-like threading model. The free plan includes 10,000 messages of search history and File storage up to 5 GB. also, it provides a self-hostable open-source version.

Straightforward file sharing service. Share unlimited files up to 5GB with as many peers as you want.

Static web publishing for Front-End developers. Unlimited sites with custom domain support

Deploy up to 100 static sites for free, custom domains with SSL, 100 GB monthly bandwidth, 260+ Cloudflare CDN locations.

Provides various free AI models including DeepSeek R1, V3, Llama, and Moonshot AI. These models excel in natural language processing and are suitable for diverse development needs. Note that while these models are free to use, they are subject to rate limits. Additionally, OpenRouter offers paid mod

An LLM evaluation and observability platform with agent simulation and prompt playground. Free tier offers 10k monthly logs, access to prompt playground, simulations and evaluations via BYOK.

60 uptime monitors, 5-minute interval. Email, Slack alerts.

Develop, secure, and manage user identities of your product - for both authentication and authorization. Free for up to 5,000 MAUs with open-source self-hosted option available.

Test management system for Dev and QA teams. Manage test cases, compose test runs, perform tests, track defects, and measure impact. The free tier includes all core features, with 500MB available for attachments and up to 3 users.

Harbor based Container Management Solution. The free tier offers 1 GB of storage for private repositories.

Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).

Unlimited mind maps for free and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.

A composition-first website builder based on shadcn/ui blocks. The free plan lets you connect your own custom domain, and includes unlimited pages, multi-language support, blog, forms, and hosting.

Expose local servers to the internet. No installation, no signup. Free subdomain, no limits.

Low-code platform that enables faster building of custom web applications. Supports building UI using drag and drop with a high level of customization through JavaScript, Python, and SQL. Available as both cloud and self-hosted solutions. Free for up to 5 users. ⬆️ Back to Top

Powerful no-code cloud platform with a focus on industrial production management. Free for one user with 1 million workflow activities a month (also available in german).

write and run scripts online utilizing free built-in APIs like OpenAI, Anthropic, Firecrawl and others. Great for building AI agents / internal tooling and sharing with team. Free-tier includes full access to APIs, AI coding assistant and 10,000 execution credits / month.

Converts audio or video to text using AI. Generates summaries and other insights using LLMs. The free tier includes 2 transcriptions per day. You can upload files, record voice notes, or use links from YouTube, Instagram etc. The free version also supports WhatsApp, Telegram and importing files dire

Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own front end. No server code is required. The free plan gives unlimited forms and 100 submissions per month.

Unlimited forms with 50 monthly submissions, spam protection, email notification, and a drag-and-drop designer that can export HTML. Additional features include custom field rules, teams, and integrations to Google Sheets, Slack, ActiveCampaign, and Zapier.

The fonts presented on this website are their authors' property and are either freeware, shareware, demo versions, or public domain.

Waitlist management software for product launches. Create branded waitlist pages, collect and verify email subscribers, manage signups with tags and analytics. Free plan includes 100 subscribers/month, 1 waitlist, and API access.

100 emails/month free, unlimited DMARC weekly digests.