The Best ToDiagram Alternatives in 2026

Code snippets, notes, API requests, diagrams, and calculations can be organized in massCode.

Regular expressions can be tested and shared in iHateRegex, a playground with diagrams and notes.

Create and edit database diagrams with ChartDB, which can visualize schemas from a database query.

SVGO optimizes SVG files through a Node.js library and command-line tool.

Jupyter Notebook provides an interactive notebook interface for working with code and documents.

For the Badge generates customizable SVG badges for software projects.

This guide explains how to use GitHub Actions to create a snake-eating contribution graph in a profile README.

HTML and CSS feature support in email clients is documented in Can I Email? through compatibility tables.

Web animations can be built with GSAP, a JavaScript library for creating motion effects.

React PDF renders PDF documents in the browser and on the server using React.

Fancy Badges provides customizable project badges in multiple formats through a maintained software fork.

SVG Path Visualizer displays SVG path data and explains the commands that shape its vector drawing.

Code2Flow converts code or pseudocode into editable flowcharts with export options.

Images of source code and terminal output can be generated with Freeze.

Badges provides designed badges for services, with hundreds of options across nine categories and multiple styles.

Mockaroo generates custom test datasets in CSV, JSON, SQL, and Excel formats, with an API mocking tool for software testing.

Build custom applications and dashboards with Appsmith, a low-code platform that connects to business data.

Opyrator turns machine learning code into microservices with a web API and interactive interface.

anywidget makes reusable widgets easier to build for notebooks and interactive applications.

SmartScripter generates custom scripts in Excel VBA, Google Apps Script, Bash, JavaScript, PowerShell, and Python.

PM2 manages Node.js processes with features including load balancing, reloads, startup scripts, and monitoring.

Handle tasks such as JSON formatting, text comparison, and regular expression testing with DevToys, a desktop toolkit.

Real-time web log analysis and interactive reports are available through GoAccess.

HandyAI offers developer utilities for token counting, prompt analysis, JSON tool use conversion, and cost calculation.