Supabase is an open-source Firebase alternative headquartered in San Francisco, United States, providing PostgreSQL database, authentication, realtime subscriptions, and storage as a backend platform for building apps.
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TinyPNG is an online image compression tool created in the Netherlands in 2014, typically reducing file size by 50-80% through smart lossy compression, with 500 free API compressions per month - a common choice for front-end and website image optimization.
Remove.bg is an AI background removal tool founded in 2018 in Munich, Germany, removing image backgrounds automatically in about 5 seconds and serving 20 million+ users with API, Photoshop, and Figma plugin capabilities.
Timely (timely-time) is the timeline and team management view of Timely, where automatic timelines record hours minute by minute and team views, budgets, cost rates and an API turn time into accountable business data.
Kimai is an AGPLv3 open-source time tracking system from Germany supporting multi-project, multi-customer accounting and PDF invoice export, self-hostable for data sovereignty and a common choice for privacy- and cost-conscious teams.
CertCenter is a German SSL certificate aggregation platform integrating Sectigo, DigiCert, GlobalSign and more, offering API-based bulk management and automatic renewal at 15%-25% below direct CA pricing.
Habitica is a gamified habit and to-do management platform from the United States with over 4 million users, turning habits, dailies and to-dos into an RPG leveling game that is free to use with an open-source core.
Founded in 2016, Forward Email is a fully open-source (MIT license) free email forwarding service with custom domain support. Zero ads, zero tracking, encrypted delivery, with API and SMTP relay — the go-to email forwarding solution for privacy-conscious developers.
Icons8 is an all-in-one design resource platform offering a 200,000+ icon library, thousands of illustration sets, HD photos and an AI icon generator, with an API for bulk fetching to help designers and developers source and customize visuals.
osTicket is one of the most widely used open-source ticketing systems, free under GPLv2 and self-hosted, with over 10 million downloads. Its lightweight architecture and mature SLA and knowledge base make it the go-to for budget-conscious teams.
Chatwoot is an open-source customer communication platform founded in 2017 in Mumbai, India; the MIT-licensed community edition is free to self-host, with a 6+ channel unified inbox and cloud plans from $15/agent/month as an open-source Intercom alternative.
Serpstat is an all-in-one SEO platform founded in 2016, with a database covering 8.62B keywords and 230 countries, over 1.1M users, and known for its value pricing and 7-day free trial.
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8 results shownOpenAI Launches GPT-5.6 Series: Three Tiers Reshape AI Price-Performance
OpenAI launched the GPT-5.6 series with Sol, Terra, and Luna tiers balancing frontier capability and cost, setting a new coding agent index record with multi-agent parallelism and programmatic tool calling.
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Anthropic launched Claude Opus 5 at the same price as Opus 4.8, setting new records on coding and knowledge work benchmarks while approaching the frontier intelligence of Fable 5 and becoming the default on Claude Max.
Complete Stripe Payment Integration Guide: from basic checkout to subscription management
Stripe is the world's most popular online payment platform. Complete guide from account setup, API integration to subscription management and webhook handling.
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APIs are the backbone of modern websites. From RESTful design principles to GraphQL query language.
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What exactly is an API? This beginner guide uses a restaurant waiter analogy to explain the difference between an API and a web page, the REST methods GET/POST/PUT/DELETE, the request-response structure, and HTTP status codes.
Stripe Projects Expands Agent Integrations: AI Agents Provision Infrastructure Safely
With agent traffic now exceeding human traffic, Stripe Projects added Hermes, Factory Droids, and Warp integrations, 16 new providers, and guardrails like per-provider spend limits and isolated credentials.
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From AI prompt templates to PHP contact forms, Nginx reverse proxies, API design and security baselines — a practical guide to backend integration and its common pitfalls.
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Design unified error codes and a retry mechanism for site APIs