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60 projects
Free browser-based PDF toolkit with 56 tools including merge, split, compress, convert, sign, and chat.
pagalannu01 · HN
PDFly – 56 free PDF tools that run in the browser
Upload slides, notes, or textbook images to generate AI-organized study guides with key concepts and practice questions.
@SundayEzek4130 · X
Still struggling with long lecture notes? Turn any difficult course into simple, easy-to-read notes in seconds. 🚀 Try it now: Check out what I just built with Lovable!
Convert screen recordings into formatted PDF guides automatically.
@vanmurten_eth · X
Guidesnap: turn any screen recording into a polished PDF guide.
The modern ProtectedText alternative and secret sharing website. Free encrypted online notepad, .env file sharing (EnvShare), and self-destructing secret links — all with AES-256 z
@kunal_twts · X
Check any domain's SSL certificate and TLS security issues instantly.
tlsradar · HN
TLS Radar – Independent SSL/TLS Monitoring, Web and CLI and Claude
Create immutable, SHA-256 certified records of your documents.
@BogachyovvA · X
A web app for protecting your documents, files, etc. using hashing. I am also looking for CEOs of companies for cooperation.
Generate BIP39 mnemonic codes and derive cryptocurrency wallet keys.
@delegacy0 · X
经过实测，keystone的骰子生成助记词和 经历了coldcard被盗事件，我就想用完全自己收集熵，来生成助记词，并且要求完全可验证。所有冷钱包和app 钱包都说自己的随机数是安全的，用最高级的随机数生成器，但是我无法验证，就像coldcard使用了安全芯片，但是在最终生成助记词的时候却没有调用该芯片，所以我就想找一种能自我验证的随机数生成方式，后来看到了keystone的推文，keystone支持骰子生成，正好我有keystone钱包。 但是下一个问题，我怎么验证keystone使用骰子生成的助记词是安全的，怎么证明它用的熵就是我提供给它的那一个？之前研究过 经过实测，keystone的骰子生成助记词和 据说trust wallet也支持该功能，明天找时间再验证一下trust wallet @KeystoneWallet @KeystoneCN
Send self-destructing notes and files with zero-knowledge encryption and screenshot protection.
minpym · HN
Flashpaper – Self-destructing secret sharing with no database
Learn vocabulary by playing a typing RPG in English, Japanese, German, and French.
DenoPark — 打字 RPG 游戏，可以背单词，记快捷键
Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X
Turn PDFs into adaptive practice questions and personalized revision flows for learning.
@qurative · X
vibe coded a landing page for seo and shit, will fix it later focusing on adding features to the dasboard
Type Arabic and English with a colorful pastel on-screen keyboard.
@alawy0427715057 · X
Check out what I just built with Lovable!
