Web Tools Weekly
Tools for Web Developers

Issue #513  (Building Libs, Media, JS Utils, Uncats)05/18/23


Meet Your New Favorite Terminal ⚡
Warp is a Rust-based terminal that works like a modern app. Edit your commands like in an IDE, with selections, autosuggestions, and completion menus. Generate commands from natural language using AI so you don’t have to context switch to Google anymore. Navigate through your terminal output command-by-command instead of scrolling through a wall of text.


Warp integrates with zsh, fish, bash, and requires zero configuration out of the box. Warp is completely free and available today on Mac.

Download Warp Today!

Every few weeks there's a good JavaScript article that makes the rounds on various platforms and garners a lot of discussion.  A recent example is Building a Frontend Framework; Reactivity and Composability With Zero Dependencies by someone named Alan (he doesn't seem to provide his last name on his socials and whatnot).

The article is definitely not for JavaScript beginners, but it's a really good foray into some modern terminology, techniques, and features that you may not have had the opportunity to use yet in real projects.

A bullet summary of the lesser-known and well-known topics he covers (albeit briefly) in the approximately 1500-word post:

  • Reactivity
  • Composability
  • JavaScript Proxy Objects
  • Data Attributes
  • Web Components
  • HTML's <template> and <slot> Elements
  • Shadow DOM
That's a lot to cover in such a short post. But that's ok. Alan's not explaining each of those in detail (though he does provide a nice little succinct definition of Shadow DOM) — he's simply going through a more or less theoretical discussion on how libraries like React and Vue are built (or supposed to be built).
Making a Front-end Framework

You can check out some of the discussion (including a little bit of criticism) on the post on Hacker News and the end result of his post is an actual vanilla JavaScript library that he links to at the end of the article (and which I'll save for a future issue in the tools section).

Now on to this week's tools!


Media Tools (SVG, Images, Video, etc.)

Observable Plot
A JavaScript library for exploratory data visualization that allows you to create expressive SVG-based charts with concise code.

High-resolution, royalty-free stock photos, categorized and searchable and available under a CC0 license.

An interactive tool to create your own "peep" (i.e. profile avatar). You can generate a random avatar or randomize the different parts of the "peep" (hair, face, body, etc).

Meet Your New Favorite Terminal ⚡
Warp is a Rust-based terminal that works like a modern app. Edit your commands like in an IDE, with selections, autosuggestions, and completion menus. Warp integrates with zsh, fish, bash, and requires zero config out of the box. Warp is completely free and available today on Mac.    SPONSORED 

An interactive tool to create a very specific kind of custom blob shape using rounded squares and rectangles, which you can download as PNG or SVG.

An set of web components that allow you to embed images for just about any popular JavaScript library. Also includes some other utilities for placeholders, Open Graph, and more.

A Web-based image editor, modeled after the legendary Deluxe Paint app from 1985, with a focus on retro Amiga file formats.

Segment Anything
A new AI model from Meta AI that can "cut out" any object, in any image, with a single click.

SVG Doodles
A free collection of 200+ graphics with a hand-drawn look, available in five different categories.

An icon search engine with access150.000+ free, open source icons, downloadable for Notion, Figma, or just plain SVG.


Fast Average Color
A simple JavaScript/TypeScript library that calculates the average or dominant color of any image or video in a browser environment.

SVG and PNG versions of tech logos for popular libraries, tools, technologies, etc.

JavaScript Utilities

An implementation of GPT inference, to run GPT models in the browser with the new WebGPU technology, in less than 1500 lines of vanilla JavaScript.

A simple, modern QR code generator. Adapted from an older project but without all the junk that was necessary 10 years ago.

Programmatically modify JavaScript and TypeScript source code with a simplified, elegant and familiar syntax. Built on top of an AST parsed by recast and Babel.

A simple utility for managing timeouts without having to manually track timeout IDs. Easily start and stop timeouts using a unique identifier.

An OpenAPI alternative to describe REST APIs for type-safe code generation, to remove the need to develop custom client SDKs for REST APIs.

Securely Share 2FA Tokens With Others, No Phone Needed
A browser-based 2FA authenticator for you and your team. Easy import from Google Authenticator, user management, read-only access, backups, and more. 2FA your team will love!    SPONSORED 

A JavaScript router with support for various environments such as Node.js, Deno, and Cloudflare Workers and configured similarly to Express.js but uses standard `Request`, `Response`, and `Headers` elements.

Higher-Order TypeScript. A library of composable functions for the type level, to transform your TypeScript types in any way you want using functions you already know.

A parser builder for JavaScript that enables you to write efficient binary parsers in a simple and declarative manner.

A set of remote functions for a simple frontend-backend relationship so your frontend can directly use any SQL/ORM query to retrieve and mutate data.


A "toy block" virtual DOM based on Million.js, and described as more of a proof-of-concept and learning resource and not necessarily to be used in production.

A super-fast multilingual word counter that can count millions of words per second (up to 0.9 GB/s 100x faster than RegExp-based solutions)and has built-in support for CJK, Urdu, Arabic, and more.

The Uncategorizables

A feature-rich online tool to create slick, interactive charts and graphs with custom data you can add to a table visually.

An online playground for testing out Java code that includes an output console.

Val Town
A social website to write and run code. Create scheduled functions, email yourself, and persist small pieces of data — all from the browser.

Val Town

Maxi Blocks
A WordPress plugin that's a free page builder and a comprehensive library of pre-built templates, designer icons, and other innovative features.

Bite-sized Math and CS Lessons to Sharpen Your Analytical Thinking
For professionals and lifelong learners alike, Brilliant is one of the best ways to learn. The deets: Bite-sized interactive lessons make it easy to level up in everything from math and data science to AI and beyond. Join 10+ million people building skills every day.   SPONSORED 

A free variable font (named after a cat) in two styles, text and display, with nine weight options ranging from thin to black.

An open-source platform for building collaborative applications, fully managed, deployed on the edge.

EqualTo Sheet Markup
A Markdown-inspired syntax for embedding spreadsheets in a markdown document, based on a service called EqualTo.

A modern full-featured open-source secure mail server, built with Go, for low-maintenance self-hosted email.

An open-source tool for creating and viewing code guides, for onboarding, explaining the context of a code review, and more.

An open-source tool, built on RClone, for securely migrating data between cloud providers, with support for AWS S3, Microsoft Azure Storage, and Cloudflare R2.

Mullvad Browser
A privacy-focused web browser, developed in a collaboration between Mullvad VPN and the Tor Project, designed to minimize tracking and fingerprinting.

Commercial Apps and Classifieds

These are commercial apps, affiliate links, PPC ads, and paid classifieds. Submit yours!
IconScout – 6.4 million+ design assets including SVG, Lottie, 3D graphics, and lots more.
Meco – Enjoy newsletters in a space built for mindful reading and give your inbox space to breathe.    AD
Makr – Share partial views of Notion databases with collaborators not in the workspace.
Trigger.dev – Trigger automated workflows from APIs, on a schedule, or on demand.
Ariyh – The latest marketing research from top business schools. No opinions or sketchy data.  AD
Robonito – A no-code tool for QA engineers, for simplifying automation testing.
DevCycle – A feature flag platform to easily create, rollout, and clean up feature flags.

A Tweet for Thought

If you're a fan of the movie Finding Nemo, you might be a bigger fan after reading this thread by Joshua Bonhotal.
A Tweet for Thought

Send Me Your Tools!

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Before I Go...

Here's a chess-inspired game called Ain't it funny how the knight moves? that I have zero patience for but maybe you'll like.

Thanks to all for subscribing and reading!

Keep tooling,