StampPDF

What it does

Stamp PDFs online in seconds — no dragging, no guesswork. StampPDF automatically detects the best placement for seals, signatures, and approval stamps using smart positioning logic. It handles rotated pages, multi-page documents, and inconsistent layouts without breaking. Built for engineers, legal teams, and anyone tired of manually placing stamps on every page. Upload → auto-place → export. Done.

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  StampPDF2025 · ▲2

  Secure, PDF stamping with smart auto-positioning

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  Autosign2022 · ▲64

  Sign PDF documents online automatically

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  SignPDF.fitJan 2026 · pdf.fit · ▲5

  Sign a PDF in seconds — no account needed

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  Fill and sign PDF from any website with a single line of code2023 · simplepdf.github.io · ▲16

  Enable your website visitors to fill, annotate, merge and edit PDF files without leaving your website. Use the iframe, Javascript script or React component.

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  MyPDFSign2025 · ▲7

  Free, fast, and private online PDF signature tool

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  STAMP & SIGNFeb 2026 · stampdocs.app · ▲3

  Add stamps & signatures to PDF in seconds

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  Lofi Cities – Pixel-art city nights with browser-generated lofi▲319

  Endless lofi beats composed live in your browser, over pixel-art nights in Paris, Tokyo, New York, Hong Kong, Sydney, San Francisco and more. Free, no sign-up.

  Work · 26d ago · loficities.com

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  Smooth Recorder▲257

  Mac screen recordings that look edited when you hit stop

  Work · 20d ago · smoothrecorder.com

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  Figma Specs▲223

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  Work · 4d ago · figma.com

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  The rarest tech books and docs you've probably never read▲190

  Work · 14d ago · readrare.com

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  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

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  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

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  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

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  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

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  Brutalist Concrete Laptop Stand (2024)▲786

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  Life & fun · Apr 2026 · sam-burns.com

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  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app