Dithered QR code generator

Jim's TrueType QR Code Font

This is a real TrueType/OpenType font that turns bracketed text into QR codes during text shaping. There is no separate image generation or preprocessing step: type text like [hello], apply the font, and the font's built-in OpenType rules render the QR code.

QRCheck.ca - Scan QR Codes Safely

Scan QR codes safely and review redirect chains without exposing your URLs. Privacy-first security analysis.

Handsum: An LQIP Image File Format

Low Quality Image Placeholders (LQIPs) are very small (both in terms of file size and pixel dimensions) images that load very quickly, providing immediate visual feedback while full-resolution images load slowly in the background. They are small-in-file-size enough that it’s feasible to base64-encode and inline them into a web page, minimizing network round-trips and improving page load times.

25. Analog FPV Video Signals | PySDR: A Guide to SDR and DSP using Python

PySDR is a free online textbook (not a Python library!) that provides a gentle introduction to wireless communications and software-defined radio (SDR) using an abundance of diagrams, animations, and Python code examples.

Barcode.new

A barcode generator that doesn't suck: 100% free, no ads, signup or cookies. Supports all barcode types. Instant, offline, on-device barcode generation with high quality SVG, PNG and PDF export options.

TinyPNG – Compress AVIF, WebP, PNG and JPEG images

Free online image optimizer for faster websites! Reduce the file size of your AVIF, WEBP, JPEG and PNG images while preserving the image quality.

Open Source Barcode Generator

Zint is a free and open-source barcode generator for desktop, command line and developer workflows, supporting many linear, stacked, postal and matrix barcode formats.

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On Rendering Diffs

A technical deep dive into how we built the @pierre/diffs package and CodeView component for zero-blanking diff rendering at any scale.

Ditherpunk — The article I wish I had about monochrome image dithering — surma.dev

I always loved the visual aesthetic of dithering but never knew how it’s done. So I did some research. This article may contain traces of nostalgia and none of Lena.

Squoosh

Squoosh is the ultimate image optimizer that allows you to compress and compare images with different codecs in your browser.

PokemonCoders – Pokemon Game Cheats & Help Guides

Manually tested Pokemon cheats, ROM hacks, and emulator guides for GBA, GBC, DS, and 3DS. Every code verified before it's published – trusted since 2014.

Sora's Pixel Converter - Retro Pixel Art Generator

Convert images into pixel art with a retro Windows 95-style interface.

How I've been using Claude Code

I've been using Claude Code a lot recently, and having a pretty good time of it. This is my report on that, and what I've found does and doesn't work well.

Presently — Share the Moment, Then Let It Go

A camera-first app for sharing photos as 24-hour stories to the Atmosphere, without a feed getting in the way.