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Open-source responsive email markup to bulletproof HTML for major clients

Open-source React JSX email component framework with preview and HTML render

Email QA inbox previews spam tests reviews

Email testing screenshots a11y deliverability

Visual HTML email builder modules ESP exports

Embeddable white-label email builder SDK

BEE drag-drop email landing builder with SDK

Vue and Tailwind HTML email framework

Curated gallery of production email designs

HTML CSS support tables across email clients

Browser HTML email IDE with MJML support

Zurb responsive email framework with Inky

Plain-HTML responsive email patterns by Ted Goas

Design-focused modular email template builder

No-code email design system for brand campaigns

Enterprise no-code email and landing creation

Collaborative email building with reusable blocks

OSS React MJML drag-drop email editor

OSS responsive email template editor self-host

OSS web builder framework with email presets

Modern email builder with rendering safeguards

Enterprise email creation with brand compliance

OSS structured email builder by usewaypoint

XML-like markup transpiling to responsive email HTML

Email coding and QA platform with modules

Writer-friendly newsletter with clean templates

Newsletter platform with visual builder and growth

Mainstream ESP with drag-drop email designer

Developer email API paired with React Email

Collaborative presentations with pitch rooms and analytics

AI-assisted decks with Smart Slides auto-layout

Vite Vue developer presentations authored in Markdown

Markdown presentation ecosystem CLI and VS Code

Formidable React JSX presentation library

Mature HTML presentation framework with plugins

Hosted visual editor built on Reveal.js

Zooming non-linear presentation storytelling canvas

Free and premium templates for Slides and PowerPoint

AI-assisted pitch deck builder for founders

Visual content suite strong on presentations and data slides

AI prompt-to-deck generator for fast first drafts

AI add-on generating decks inside Google Slides

Free collaborative cloud slide editor

Apple polished native presentation app

Enterprise-standard slide authoring with Designer

Canva presentation mode with Magic Design templates

Figma native slides for design-system-consistent decks

Enterprise AI presentations with brand governance

React MDX presentation decks with Theme UI

Interactive presentation and infographic maker

Design-forward web presentation canvas tool

Mac app turning Markdown into Keynote-like decks

Writing-first presentation app from iA

Simple image-forward presentation maker

Zoho free online presentation editor

Live interactive presentations with polls and Q and A

Simple Markdown-in-HTML slideshow library

Art-directed website builder for experimental layouts

Creative network with Sites OS personal websites

Modular bento-grid personal page for links and projects

Native Notion publishing for public portfolio pages

Turns Notion pages into fast SEO custom websites

Portfolio builder focused on photographers and visuals

Behance-integrated portfolios with Creative Cloud

Legacy flat-file artist CMS index plus exhibit

WordPress portfolio system for long-form case studies

All-in-one portfolio with client galleries blog store

Simple project-based portfolio for creative resumes

Straightforward portfolio hosting for designers

Polished template builder for creative studios

Flexible drag-drop builder with portfolio templates

Minimal personal site blog builder for indie makers

Professional network for builders with project proof

Independent work network with freelancer portfolios

Website builder specialized in artist photo portfolios

Portfolio builder for journalists and writers

Portfolio builder for copywriters and marketers

Clean resume personal site generator

No-code builder for personal brands and landings

Block-based builder for editorial personal sites

Simple AI-assisted builder with portfolio templates

Writer portfolio for published clips and bylines

Browser live-coded video synth with fluent JS API for audiovisual performance

p5.js creative coding library and web editor ecosystem for generative sketches

Official in-browser IDE for p5.js sketches

Community gallery classroom for p5 sketches

WebGL shader playground for fragment shaders

Interactive GLSL primer with live editors

Ultra-minimal 16x16 JS expression animation toy

OSS creative coding framework for Rust

Java creative coding environment Processing 4

C++ toolkit for high-performance installations

Browser node-based visual programming for WebGL

Classic browser fragment-shader sandbox

Tweet-sized GLSL editor with GIF export and sound shaders

Browser live-coding language for audiovisual patterns

Live-coding music synth for audiovisual sets

Browser port of TidalCycles patterns for live music

Generative art platform for on-chain creative coding

Curated long-form generative art platform

Friendly ML library for creative coding with p5

Kotlin OSS framework for creative coding and viz

Creative coding library for elegant graphics in Cplusplus

Windows visual live-programming for multimedia

Powerful web 3D engine for creative scenes and XR

WebGL engine and collaborative editor for interactive 3D

OSS visual programming for audio video sensors

Cycling 74 commercial visual programming for media

Browser live-coding for shaders synths video CV

Interactive Shader Format editor for VJ-ready GLSL

Pixel art hub with palettes scaler rotator gallery

Browser pixel editor tied to Lospec palettes

Free browser sprite editor with layers and onion skin

Godot-based OSS pixel multitool with animation tilemaps

Community fork of pre-proprietary Aseprite workflow

Massive CC0 game asset library including UI packs

CC0 UI sprite pack with 400+ multi-color elements

OSS DeluxePaint-inspired pixel editor with palettes

Windows pixel animation editor now freeware

Professional pixel art and animation studio

Social browser pixel art editor and gallery

Free offline-in-browser pixel sprite editor

Scriptable pixel art editor for game pipelines

OSS 2D map and level editor for tile games

Retro fantasy console for making pixel games

Commercial RPG suite with extensible UI plugins

Marketplace directory of game UI and pixel kits

Popular itch.io RPG UI kit with boxes and fonts

Game asset shop with 2D GUI packs and freebies

Thousands of free SVG PNG game icons for UI

Classic pixel art community gallery and software hub

OSS editor for GBA SNES-style tilemaps

OSS game engine with Control nodes for game HUDs

CC-BY-SA LPC character and tileset corpus

Browser AI plus editor for pixel sprites

Procedural texture tool for stylized UI surfaces

Tagged itch.io directory for game UI packs