Web Tools #693 - JS Utilities, Testing & Debugging, Build Tools
Issue #693 • October 29, 2026
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JavaScript Utilities
S3Bucket — A lightweight JavaScript helper for making signed S3 requests using aws4fetch, providing a small S3Bucket class with convenience methods for common object operations (head, get, put, delete).
Nano Kit — A lightweight, modular, and performant state management ecosystem for building modern web applications.
Wordgard — A modular, schema-based JavaScript library for implementing an in-browser rich-text editor, with support for RTL, collaborating user editing, and more.
Meco — A distraction-free space for reading newsletters outside the inbox, packed with features to supercharge your productivity. Become a more productive reader and cut out the noise with Meco. SPONSORED
excel-bridge — A lightweight, tree-shakeable .xlsx (Excel file) toolkit for TypeScript that lets you read and write spreadsheets in the browser and Node without ExcelJS or SheetJS.
vgpu — A modular, cross-runtime WebGPU library for shaders, 3D scenes, GPU tensors, neural networks, and math viz.
File Viewer — A utility that provides read-only previews for Office, PDF/OFD, CAD, archives, email, and more (up to 275 extensions), in the browser, done by means of built-in renderers with no conversion server needed.
Eraser Diagrams — A framework that provides a diagramming system for creating clear, consistent, beautiful diagrams.
Testing & Debugging Tools
CVE Lite CLI — A fast, developer-friendly JS/TS dependency vulnerability scanner with local lockfile scanning, OSV matching, direct vs transitive visibility, JSON output, and practical remediation guidance.
Stage — A better code review platform that organizes pull requests into logical chapters using AI, so reviewers understand your changes faster.
NiubiGEO — An open-source tool for tracking brand visibility and competitors in AI answers, allowing you to start with a domain to see how different models describe your product and which competitors they name.
The Hidden Team Behind Growth to $1B+ for Suno, Jeeves, and Picsart. — We’ve hired agencies. Most were bad. So we built one for founders like us. Get a free growth plan built just for you. We’ll show you the best ways to scale fast in your niche over 6 months. SPONSORED
Email Spam Tester — Send a test email to check its spam score, SPF, DKIM, DMARC and blocklists. Add an inbox placement test to see where it lands in Gmail, Outlook, Yahoo and other providers.
Lighthouse for Claude Code — Analyze any URL with Google PageSpeed Insights, then download a CLAUDE.md tailored to the failing audits. Drop it into your repo and let Claude Code do the work.
caniname — A zero-dependency CLI tool and Node.js library to check project name availability across services (Netlify, NPM, and more).
ImapKit — A scriptable, in-memory IMAP server for testing IMAP clients that's strict by design, with support for 50+ extensions, and multiple sessions.
Your Notion Workspace is a Product — Start Treating It Like One
Early-stage teams move quickly, but their internal systems often struggle to keep up. In the first few months of building a company, it is easy for documentation, roadmaps, meeting notes, hiring plans, and customer insights to scatter across different tools and conversations.
At first, that mess feels manageable. But as the team grows, every unclear process becomes a drag on execution.
The most effective founders treat their workspace like a product. That means designing it intentionally, with a clear structure, useful templates, shared naming conventions, and a simple onboarding experience for every new team member.
A strong workspace should make work easier to find, decisions easier to track, and priorities easier to understand. Operational debt compounds just like technical debt. Every duplicate doc, lost decision, or unclear handoff slows the team down.
By building a clean, scalable workspace early, founders create a stronger foundation for faster execution, better collaboration, and less time wasted searching for context. Build a workspace that scales with your team.
Build Tools, Bundlers, etc.
redact — An alternative logical projection of React with 100% API compliancy but simpler implementation resulting in smaller bundle size and better performance.
Astro LilyPond — An Astro integration for rendering music notation from text for LilyPond, the sheet music production app.
Flint — A fast, friendly, experimental linter for JavaScript, TypeScript, and more, that combines ease of writing JS/TS rules with performance, for a hybrid approach.
Sitelo — A static site generator for Vite that allows you to write JS/TS/JSX functions that return HTML and get a complete static site with file-based routing, dynamic pages, data loading, an asset pipeline, sitemap, RSS, Pagefind search, and a live dev server.
Fast VPN Bundle for Unlimited Devices — Easy setup. No complicated configurations. Connect multiple devices at the same time and protect your entire household with one account. Malware protection. Spam prevention. Ad blocking. Dedicated IP. SPONSORED
Vite Plugin Registry — A resource that collects plugin data from npm daily and provides a searchable directory of plugins for Vite, Rolldown, and Rollup.
Frond — An Effect-powered frontend runtime for React and MobX-facing application state.
Commercial Apps & Classifieds
A Social Post for Thought
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Before I Go...
Neal Agarwal's latest game, Unusual Suspects, lets you draw suspects as described by witnesses, then you get to see how close your drawing was to the actual perpetrator.
Thanks to everyone for subscribing and reading!
Keep tooling,
Louis
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