TypeScript tooling

12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.

• pixivflow🎨 Pixiv 下载、筛选与自动收集工具 - 批量下载插画和小说、按标签/热度/日期筛选、定时任务与可靠 HTTP 交付 | Pixiv downloader and automation toolkit with filtering, scheduling and reliable HTTP delivery
• @zocks-communications/metrics-modelMetrics models for Zocks Metrics Service
• @zocks-communications/metrics-service-client-sdk-jsClient SDK for Zocks Metrics Service
• @devmehq/email-validator-jsAdvanced email validation with MX records, SMTP verification, disposable email detection, batch processing, and caching. Production-ready with TypeScript support.
• @stacksjs/docsThe Stacks way to document.
• @tanstack/ai-claude-codeClaude Code harness adapter for TanStack AI — run Claude Code as a chat backend with local tool execution and stateful sessions.
• @tevm/http-clientClient implementations of Tevm
• pb.safeErrors as values; try/catch as a function.
• @stacksjs/commerceStacks commerce utilities.
• @lodestar/reqrespA Typescript implementation of the Ethereum Consensus Req/Resp protocol
• ts-lintAn extensible static analysis linter for the TypeScript language
• @fakerjs/stringString package provides functionality to generate a fake string value.
• @tevm/viemA typesafe library for writing forge scripts in typescript
• @carbon/charts-angularCarbon Charts component library for Angular
• @tevm/serverA TRPC server serving JSON RPC for Tevm vm
• parjsLibrary for building parsers using combinators.
• @constructive-io/coerceCoerce untrusted unknown values into narrow TypeScript types
• @countrystatecity/countries-browserBrowser-native countries, states, and cities data with jsDelivr CDN and lazy loading
• channel-tsChannels implemented in Typescript using async/await
• postgrejsProfessional PostgreSQL client NodeJS
• @promptbook/vercelPromptbook: Create persistent AI agents that turn your company's scattered knowledge into action
• @tevm/txA custom implementation of ethereumjs tx
• error-class-utilsProperly create error classes
• @xmtp/browser-sdkXMTP client SDK for browsers written in TypeScript
• error-custom-classCreate custom error classes
• react-edit-to-html`react-edit-to-html` is a premium, highly customizable, responsive HTML editor and visual template builder for creating dynamic HTML layouts. It is perfect for generating backend templates (invoices, shipping lists, email templates, billing letters, repor
• @tevm/client-typesA typesafe library for writing forge scripts in typescript
• @cossistant/reactHeadless React SDK for building AI-powered support/chat widgets. Hooks + primitives, WS-driven, TypeScript-first. Next.js-ready, Tailwind optional.
• attio-ts-sdkType-safe TypeScript SDK for the Attio CRM API with Zod v4 runtime validation
• @premieroctet/next-admin-generator-prismaPrisma generator for Next-Admin
• @esri/arcgis-rest-authAuthentication helpers for @esri/arcgis-rest-js.
• @stacksjs/apiThe Stacks API utilities.
• @fimbul/mithotynTypeScript LanguageService plugin for the Fimbullinter project
• @premieroctet/next-admin-json-schemaJSON Schema helpers for Next-Admin
• @stacksjs/slugThe Stacks slug functionality.
• @stacksjs/chartsChart rendering for Stacks. Built on ts-charts (D3 in TypeScript).
• @stacksjs/replA Stacks optimized TypeScript REPL.
• @stacksjs/httpStacks HTTP methods.
• @stacksjs/calendar-apiEasily interact with calendar APIs.
• qminder-apiQminder Javascript API. Makes it easy to leverage Qminder capabilities in your system.
• @nestjs-mcp/serverModular library for building scalable MCP servers with NestJS, providing decorators and integration patterns as a wrapper for the official MCP TypeScript SDK.
• svelte-sitemapSmall helper which scans your Svelte routes folder and generates static sitemap.xml
• @bootstrap-vue-next/nuxtNuxt Module for BootstrapVueNext
• claude-code-lintComprehensive linter and programmatic API for Claude Code projects - validates CLAUDE.md files, skills, settings, hooks, MCP servers, plugins, and more
• oembed-parserGet oEmbed data from given URL.
• @stacksjs/ts-cacheSimple and fast TypeScript in-memory caching. Modern TypeScript port of node-cache.
• pptx-glimpseHigh-level PPTX rendering and editing toolkit for SVG/PNG output in Node.js and the browser.
• iterable-operatorUtilities for JavaScript Iterable and AsyncIterable
• babel-plugin-transform-rewrite-importsAdd an extension to import specifiers that do not already have one, replace the extensions of those that do, or even rewrite specifiers entirely
• @slopus/murmurStateful MLS sessions over authenticated encrypted delivery queues

• valibot vs zod
• ts-toolbelt vs type-fest
• ts-essentials vs type-fest
• type-fest vs utility-types
• tsx vs effect
• type-fest vs just-diff
• pdf-lib vs @pdfme/pdf-lib
• @hey-api/openapi-ts vs openapi-typescript-codegen
• @asteasolutions/zod-to-openapi vs zod-openapi
• @hey-api/openapi-ts vs zod-openapi
• @uiw/react-md-editor vs markdown-exit
• @hey-api/openapi-ts vs @asteasolutions/zod-to-openapi
• rollbar vs evlog
• kysely vs @prisma/client
• type-graphql vs quicktype-core
• type-graphql vs nexus
• openapi-typescript-codegen vs openapi-client-axios
• zod-openapi vs openapi-client-axios
• openapi-fetch vs openapi-typescript-codegen
• @apollo/cache-control-types vs type-graphql
• @asteasolutions/zod-to-openapi vs oazapfts
• drizzle-orm vs sequelize-typescript
• @e2b/code-interpreter vs react-multi-carousel
• io-ts vs runtypes
• openapi-fetch vs openapi-client-axios
• @asteasolutions/zod-to-openapi vs @kubb/oas
• @envelop/core vs payload
• openapi-fetch vs zod-openapi
• zod-openapi vs openapi-typescript-codegen
• openapi-client-axios vs @kubb/oas