GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.
☆2,182Apr 23, 2026Updated last week
Alternatives and similar repositories for altcha
Users that are interested in altcha are comparing it to the libraries listed below. We may earn a commission when you buy through links labeled 'Ad' on this page.
Sorting:
- ALTCHA for WordPress plugin☆33Dec 14, 2025Updated 4 months ago
- A no-nonsense CAPTCHA system with seamless UX | Backend component☆2,444Oct 7, 2025Updated 6 months ago
- The privacy-first, self-hosted CAPTCHA for the modern web.☆6,163Updated this week
- Open source, privacy-first web analytics. Lightweight, cookie-free Google Analytics alternative. Self-hosted or cloud.☆24,715Updated this week
- Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.☆36,367Updated this week
- Deploy to Railway using AI coding agents - Free Credits Offer • AdUse Claude Code, Codex, OpenCode, and more. Autonomous software development now has the infrastructure to match with Railway.
- Weighs the soul of incoming HTTP requests to stop AI crawlers☆18,892Updated this week
- An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stac…☆54,457Updated this week
- High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.☆19,618Apr 24, 2026Updated last week
- OpenPanel is an open-source web and product analytics platform, an open-source alternative to Mixpanel with optional self-hosting.☆5,673Apr 24, 2026Updated last week
- 🐸 Rybbit - open-source and privacy-friendly alternative to Google Analytics that is 10x more intuitive.☆12,025Updated this week
- Open Source Alternative to Vercel, Netlify and Heroku.☆33,604Updated this week
- A fancy self-hosted monitoring tool☆86,078Updated this week
- 🔥🔥🔥 Open-source Jira, Linear, Monday, and ClickUp alternative. Plane is a modern project management platform to manage tasks, sprints,…☆48,469Updated this week
- Penpot: The open-source design tool for design and code collaboration☆47,118Updated this week
- Managed hosting for WordPress and PHP on Cloudways • AdManaged hosting for WordPress, Magento, Laravel, or PHP apps, on multiple cloud providers. Deploy in minutes on Cloudways by DigitalOcean.
- All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).☆12,529Updated this week
- Open Source realtime backend in 1 file☆58,022Updated this week
- Open Source Newsletter Tool.☆2,079Updated this week
- Open platform to collect and prioritize feedback☆4,244Updated this week
- modern full-featured open source secure mail server for low-maintenance self-hosted email☆5,656Dec 21, 2025Updated 4 months ago
- CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the m…☆13,198Updated this week
- Complete open-source monitoring and observability platform.☆6,878Apr 25, 2026Updated last week
- The open alternative to Salesforce, designed for AI.☆45,266Updated this week
- Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuz…☆25,744Apr 24, 2026Updated last week
- Wordpress hosting with auto-scaling - Free Trial Offer • AdFully Managed hosting for WordPress and WooCommerce businesses that need reliable, auto-scalable performance. Cloudways SafeUpdates now available.
- Create self-positioning popovers with native CSS—no JavaScript required. Made for Svelte 5. Build tooltips, dropdowns and any floating UI…☆27Mar 27, 2026Updated last month
- 🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session repla…☆34,222Updated this week
- An email and SMTP testing tool with API for developers☆9,233Apr 16, 2026Updated 2 weeks ago
- Open source DocuSign alternative. Create, fill, and sign digital documents ✍️☆11,781Updated this week
- A collaborative note taking, wiki and documentation platform that scales. Built with Django and React.☆16,446Updated this week
- Fast, secure, efficient backup program☆33,312Apr 1, 2026Updated last month
- The authentication glue you need.☆21,249Updated this week
- Identity-aware VPN and tunneled reverse proxy for remote access.☆20,427Updated this week
- A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.☆57,368Updated this week
- 1-Click AI Models by DigitalOcean Gradient • AdDeploy popular AI models on DigitalOcean Gradient GPU virtual machines with just a single click. Zero configuration with optimized deployments.
- Send push notifications to your phone or desktop using PUT/POST☆29,948Updated this week
- Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestrat…☆9,588Updated this week
- Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship a…☆10,199Updated this week
- Modern open-source time-tracking app☆8,500Apr 21, 2026Updated last week
- Infisical is the open-source platform for secrets, certificates, and privileged access management.☆26,384Updated this week
- Simple, private file sharing. Mirror of https://gitlab.com/timvisee/send☆5,715Jul 1, 2025Updated 10 months ago
- Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)☆25,452Apr 24, 2026Updated last week