
JSON Validator, Formatter & Repair — JSONValidator.in
Validate, format, and repair JSON instantly in your browser.
@AniketMishra00 · X
world's first JSON Intelligence platform.
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Validate, format, and repair JSON instantly in your browser.
@AniketMishra00 · X
world's first JSON Intelligence platform.

110+ free developer tools including JSON formatter, JWT decoder, and regex tester that run entirely in your browser.
@abhilakshharora · X
Just launched DevTab on Product Hunt 🚀 110+ dev tools that run 100% in your browser. Zero server calls. No signup. Free forever. Would love your support 🙏 → #buildinpublic #DevTools

Eight free browser-based tools including JSON formatter, password generator, and color picker.
@Supportpintutec · X
Just launched QuickTools — 8 free online tools 🛠️ Word Counter • JSON Formatter • Password Generator • Color Picker 100% browser-based, no signup 🔗 #SideProject #WebDev #FreeTools #BuildInPublic

Extract tables and data from any website with one click, export to Excel or JSON.
Scrapilot — AI 爬虫插件,零代码采集任意网页数据,运行在真实浏览器中,天然抗反爬,支持定时自动化工作流
Generate favicon packages from text and brand colors in multiple formats and sizes.
struy · HN
Turn a letter, initials, or short text into a complete favicon package — favicon.ico, apple-touch-icon, and PNG icons in every size. Free, no signup.

Learn to code and build projects through interactive games and challenges designed for the LLM era
@RahimNathwani · X
Not a direct answer but the guys at Exercism (non-profit that publishes really good and free programming language self-study courses) recently launched a separate site to teach junior programmers both vibe coding and software engineering fundamentals.

Zero-setup JSON database for AI-generated app frontends with encrypted persistence.
@dhairyadarji786 · X
Tired of database setup for simple AI/Cursor prototypes?I built CloudState: a zero-config cloud database for vibe-coding. ⚡Get a secure JSON endpoint in 10s 🤖 Custom prompts for Cursor/Bolt/v0 to sync state via fetch Check it out:

Connect your business data sources (Stripe, PostHog, Google Analytics) into one dashboard.
@xdrewmiko · X
Roast my SaaS - Would you use it? - Should I change anything?

Turn YouTube videos, PDFs, and URLs into Anki flashcard decks in seconds.
u/holios89 · Reddit
Built an AI SaaS that turns your notes/articles/PDFs into study flashcards — looking for harsh feedback (and bugs) Hey folks, Solo/small side project here: Deckly ( deckly.one ) — an AI-powered flashcard generator for spaced-repetition learning (Anki-compatible export). You give it text, a PDF, or an article link, it generates a deck of flashcards (Q&A, Cloze, or multiple choice), optionally with TTS audio and images per card, and you can study it right in the browser or export to `.apkg`.

Extract code, design tokens, fonts, colors, and media from any website instantly.
@bharatmodi2014 · X
Extract code, design tokens, fonts, colors, and media instantly. Save everything to the cloud, organize your library, and regenerate designs with your favorite AI.

Write email templates as React components and automations as TypeScript, then deploy with your app.
@stewartjarod · X

Use 450+ privacy-friendly tools to format, convert, and process PDFs and images directly in your browser.
@tentaco_cc · X
Hey! I built 🐙 It’s a privacy-first web space packed with over 450+ free micro-tools for tech, design, marketing, and PDFs. The best part? Everything runs 100% locally in your browser. No registration, no ads. Let's connect! 🛠️