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Find the right tools for what you're building.

Compare 172 developer and AI tools on live GitHub stars, npm downloads, pricing and release activity, plus 40 agent skill packs. Every fact is checked against the official source.

TryPolar vs PaddleConvex vs SupabaseDatabasesAuth

Recently added

New tools and agent skill packs, newest first.

Tools

All, newest first
DSPyPython framework from Stanford NLP for programming language model systems instead of writing prompts.KeycloakOpen source identity and access management with single sign-on, OpenID Connect and SAML.CockroachDBDistributed SQL database from Cockroach Labs, sold as a cloud service or licensed to self-host.SequelizePromise-based ORM for Node.js and TypeScript that supports six SQL databases.MongooseSchema-based object modeling library for MongoDB on Node.js.HaystackOpen source Python framework from deepset for building LLM applications, RAG pipelines and agents.

Agent skills

All, newest first
Taste SkillDesign skills that give a coding agent an art direction, real photos and a browser check of its own pages.Obsidian SkillsSix skills that let an agent write Obsidian Markdown, Bases and Canvas files and use the Obsidian CLI.BragA /brag command that turns your project into a short launch video with music, motion and share copy.Prompt MasterOne skill that writes tighter prompts for AI tools, from coding agents to image and video models.Garden SkillsSix skills for web design, article layout, web video, motion graphics, image prompts and local knowledge search.Jeff Allan's Claude skills67 full-stack development skills for Claude Code, from language and framework experts to DevOps and security.

Popular decisions

Side-by-side comparisons that open with a short answer.

All comparisons

PolarvsPaddle

Polar and Paddle both act as merchant of record, so they collect and remit sales tax and VAT on your behalf.

Payments

ConvexvsSupabase

Supabase is an open source platform built around a dedicated Postgres database, with auth, storage and auto-generated APIs, so you work in SQL.

Databases

MercuryvsStripe

Mercury is a business bank account for startups, with free checking and savings, cards and treasury tools.

Payments

Headless UIvsshadcn/ui

Headless UI is a small, focused set of unstyled, accessible components from the Tailwind CSS team, installed as a normal npm package for React or Vue.

UI Libraries

ClerkvsAuth0

Clerk is a hosted authentication service with prebuilt UI components, billing by monthly retained users per app since February 2026, with a free tier covering 50,000 users.

Auth

PrismavsDrizzle ORM

Prisma is a type-safe ORM from Prisma Data, Inc., paired with an optional managed platform, Prisma Postgres, that has its own free and paid tiers.

ORM

VercelvsNetlify

Vercel is the platform built by the creators of Next.js, pricing Pro at $20 a month per deploying seat with $20 of included usage credit.

Hosting

NeonvsSupabase

Neon is a serverless Postgres platform, now owned by Databricks, focused on scale-to-zero compute and instant, copy-on-write database branching.

Databases

Browse by category

All categories
DatabasesDatabases and backend platforms for storing your app's data.12AuthSign-in, user management and single sign-on for your app.12HostingPlatforms for deploying web apps, sites and backend services.12UI LibrariesComponent libraries and styling tools for building interfaces.15AI Coding ToolsCoding agents, AI editors and code completion for writing software faster.23AI ModelsLanguage models you can call from an app, from hosted flagships to open weights.21AI Platforms & APIsWhere you get access to models: provider APIs, model hosting and local runners.16LLM FrameworksLibraries for building apps and agents on top of language models.8No-CodeVisual builders for apps, websites, internal tools and automations.20PaymentsPayment processing, subscription billing and merchant-of-record platforms.19EmailAPIs and services for sending transactional and marketing email.7ORMLibraries for querying your database from application code.7

Agent skills

Skill packs for Claude Code, Codex and Cursor, each checked by hand.

All skills
Matt Pocock's skillsSmall, composable engineering skills for planning, specs, tickets, test-driven development and code review.39 skills317kSuperpowersA skills pack and development method that makes a coding agent design, plan, test and review before it ships code.15 skills314kPonytailMakes a coding agent write only the code a task needs, reaching for built-in and existing options first.6 skills186kUI UX Pro MaxA design skill that gives a coding agent a searchable database of UI styles, palettes, fonts and UX rules.7 skills146kgstackA set of 55 slash-command skills that gives Claude Code a sprint process from planning to review, QA and shipping.71 skills140kCavemanA skill that makes a coding agent answer in short caveman-style prose, plus an optional proxy that cuts what it reads.22 skills118k

Latest releases

New versions from tracked tools, pulled from GitHub.

Trending
CrewAI1.15.3713 hours agoCloudflare Workersv1.20261107.114 hours agoMikroORMv7.2.816 hours agoOpenCodev2.2.616 hours agoVercel AI SDK@ai-sdk/[email protected]17 hours agoVercel AI SDK@ai-sdk/[email protected]17 hours ago

Launched this week

New tools published on ScratchDB this week.

All launches

Glassy UI

Open-source glass components for React and Expo, installed as source with shadcn.

UI Libraries

PopNow API

API for generating videos, images, music and voiceovers

AI Platforms & APIs

TailwindFlex

Free library of 3,388 copy-paste Tailwind CSS components, no signup

UI Libraries

TwitterAPI.io

Twitter/X data API and hosted MCP server for developers

AI Platforms & APIs

XCrawl

Live web data for AI agents, RAG and automations

AI Platforms & APIs

How ScratchDB works

Rankings use live numbers, not payment. Sponsored placements are labelled.

About ScratchDB

Live numbers

GitHub stars, npm downloads and releases refresh every day from the public APIs.

Checked facts

Pricing and features come from official sources, each with the date it was checked.

A short answer first

Comparisons open with who should pick what, then show the evidence.

ScratchDB: find the right developer tools for what you're building