Stylify Me is an online style guide generator created to help designers quickly gain an overview of a site's style guide, including colours, fonts, sizing and spacing. It presents text colours, typography, and image dimensions.
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Supernova is a design system and knowledge management platform that connects design and code data, including tokens, components and documentation, into one source. It supports multi-brand design systems, page history, realtime collaboration and code automations. Filtered MCP servers give AI agents team-specific knowledge, and MCP analytics show usage by users.
Surge is a static web publishing service for front-end developers that deploys projects from the command line to a CDN. It offers free custom domain support, free SSL for surge.sh subdomains, pushState support for single page apps, custom 404.html pages, and a CLI. Projects can be deployed through build tools such as Grunt, Gulp, Git Hooks, and npm run scripts.
SVG Editor helps developers write, search, review, test, or manage code and projects.
SVG Studio is a free, browser-based SVG animation editor with no sign-up and no telemetry. It provides a keyframe timeline, animatable position, rotation, scale and opacity properties, SVG import, easing functions, loop control and export of self-contained animated SVGs with embedded CSS keyframes.
svg-path-editor helps developers write, search, review, test, or manage code and projects.
SVGFast converts PNG and JPG images into SVG vectors. It offers unlimited conversions without sign-up and free API access during the beta after signing in with Google or GitHub. The API returns optimized SVG from the same engine, with keys sent in an authentication header.
SVGX is a free desktop SVG icon and asset manager for Mac and Windows. It searches SVG icons across nested folders, previews and zooms files, edits markup inline, and offers dark mode. It copies markup or URL-encoded code, generates background-image CSS, previews background repeat values, and optimizes SVGs with SVGO. It includes recents, bookmarks, and export to SVG or PNG.
Create online forms with a browser-based form builder.
Tech playground is a browser-based environment for teaching and learning technology without local setup. It runs user configurations on real servers, offering server playgrounds, template engine playgrounds, network tools and other tools. Documentation notes that playgrounds run in UTC and executions may be cached.
Tekcities.com offers free web hosting alongside paid shared, semi-dedicated and VPS hosting plans. The service lists support for PHP, Perl, CGI, Python and Ruby, domain registration and transfer, SSL certificates, and a website builder. A FAQ page addresses hosting control panel and account questions.
Temper is a tool for building a personal web page. Users enter their content and adjust colors and typography to match their style, then download a free HTML file to upload to their own hosting. It is created by Jonas Pelzer.
TemplateMo offers over 620 free HTML and CSS website templates, including responsive Bootstrap layouts and AI-customizable pure CSS designs. The templates are described as free for commercial, personal, or learning purposes, and no signup is required. Templates cover categories such as one-page, business, portfolio, and landing pages.
The Apache OpenOffice Templates site offers downloadable templates to enhance Apache OpenOffice. Templates are searchable and filterable by category (Business, Education, Private) and by application (Calc, Draw, Impress, Writer), and can be sorted by highest rated, most popular, or most recent.
Termible is a subscription service for embedding an actual Linux terminal into a website, letting visitors try a CLI tool, REST API or programming language without installation. It launches Docker-powered containers as users connect, and supports executable code examples, embedded terminals and session recording. The service is in private beta, and plans list free, startup and enterprise tiers with concurrent terminal limits.
The Algorithms - C++ is a repository of open-source implementations of various algorithms in C++, released under the MIT License. It covers topics including computer science, mathematics, statistics, data science, machine learning and engineering, and is intended as a learning resource for educators and students. The documentation is generated from the source code.
The Component Gallery is a repository of interface components drawn from examples in design systems. It serves as a reference for people building user interfaces and catalogues 60 components, 95 design systems and 2,671 examples, including carousel, tree view, popover, rating, accordion, quote, pagination and tabs.
A platform-agnostic specification of the technical features a good website should have, built in the open under an MIT licence. It covers 177 topics across ten areas, including foundations, SEO, accessibility, security, performance and privacy, and offers a yes/no checklist for auditing a site. An open, read-only MCP server lets agents query the specification.
An open-source resource for learning data structures and algorithms through implementations in various programming languages. The site covers programming languages including Python, Java, JavaScript, Go, Rust, and C++, and organizes algorithms into categories such as sorting, searching, and graph algorithms. It also provides guidance on contributing implementations.
Theatre.js is an animation editor with a visual interface, provided as a JavaScript animation library with a professional motion design toolset. It is for creating animations, from cinematic scenes in THREE.js to UI interactions. It works with any front-end library or framework.
Weekly newsletter covering Rust language updates, crates, articles, jobs, and community news.
Thonny is a Python IDE for beginners. It comes with Python built in, so one installer is enough, and the initial user interface is stripped of features that may distract beginners. It offers a simple debugger for stepping through programs and a variables view. Installers are offered for Windows, macOS and Linux.
Tidal Cycles is a free/open-source live coding environment for making algorithmic patterns, written in Haskell. It uses SuperCollider for synthesis and MIDI and includes notation for rhythmic sequences with patterning functions. By default sound is made with the SuperDirt synth/sampler, and other synths can be controlled with OSC or MIDI.
Tilda is a website builder for creating websites, online stores, landing pages and blogs without code. It offers a library of pre-designed blocks and templates, plus an AI tool that can generate pages and copy. A professional editor, Zero Block, allows element-level design editing.