Changelog

• Added Code Screenshot Generator: turn a code snippet into a beautiful, shareable image with syntax highlighting, gradient backgrounds, and optional window chrome, rendered and exported entirely in your browser.

• Added JSON to TypeScript: paste JSON and get TypeScript interface declarations, inferred entirely in your browser with optional fields and union types when array samples differ.

• Added DBML Editor: write DBML and see a live entity-relationship diagram, then export SQL DDL for PostgreSQL, MySQL, SQL Server, or Oracle — the inverse of our existing SQL DDL to ERD diagram tool.

• Added ULID Generator & Decoder: generate time-sortable ULIDs (batch of up to 50) and decode existing ones back into their embedded timestamp, computed entirely in your browser.

• Added JSON Graph Visualizer: paste JSON and see it rendered as a force-directed node graph — every object, array, and value becomes a node linked to its parent, computed entirely in your browser.

• Added CSS Unit Converter: convert between px, rem, em, pt, pc, in, cm, mm, vw, and vh, with adjustable root/parent font size and viewport width/height — built entirely in your browser.

• Added a searchable pattern library to Regex Tester (Email, IPv4, IPv6, URL, semver, JWT). Picking a pattern fills the Expression field, and named test cases below it re-evaluate live against your current expression with PASS/FAIL badges — so you can tweak a pattern and immediately see which sample strings still match.

• Added a "Preview sample UI" split pane to Color Palette Generator: see the generated palette applied to a form, hero section, page frame (header/footer), and app-like screen — each collapsible, updating live as you change the base color.

• Added UTM Builder: enter a destination URL and campaign parameters (utm_source, utm_medium, utm_campaign, term, content, id) to generate a ready-to-share, percent-encoded campaign tracking URL — built entirely in your browser.

• Added Color Palette Generator: enter a HEX/RGB/HSL color and get a 50–950 tonal scale, tints, shades, and complementary/analogous/triadic harmonies, each copyable as hex.

• Added CIDR / Subnet Calculator: enter an IPv4 CIDR block and get the network/broadcast address, subnet mask, wildcard mask, usable host range, and address count.

• Added "Open in JQ editor" action on JSON Formatter for quick handoff to JQ Playground.

• Improved compare layout and formatting in File Diff
• Improved rendering/styling in Markdown Editor preview.

• Added File Diff tool for side-by-side text comparison.

• Improved Interview problems layout and dark mode readability.

• Improved tab rename/delete flow in Excalidraw.

• Added Stack Trace Formatter tool: format and beautify stack traces from any language or log.

• Added kubectl cheatsheet to the cheatsheets collection.

• Added Excalidraw tool for drawing diagrams.

• SQL playground

• Base64 encoder
• Base64 decoder
• Timezones cities list - frequent cities with timezones

• Timezone compare
• CSV Viewer - view csv as a table
• CSV to SQL - convert csv to sql create table and inserts
• CSV to JSON - convert csv to json
• CSV query with SQL - query csv with sql playground (as sqlite)

• JSON viewer
• CSV Viewer

• Mysql in docker and Postgres in docker how to guides

• Git cheatsheet added help about bisect, checkout tags, checking out to new folder and branch
• added random number code hints for java, python, and javascript

• Inline SQL variables quick tool to replace ? in your SQL with vars

• MySQL command builder got an option to share via url link and more options
• added zip and unzip cheatsheets Zip cheatsheet Unzip cheatsheet

• base64 image encoder Base64 image encoder

• mysql command line builder + code generator for popular libraries MySQL command builder

• tar command line builder is added at Tar command builder

• see at Interview solutions here

• see at Interview questions here

• Added multiple blog posts about emailing from Azure

• Added new JSON diff viewer based on codemirror merge plugin
• see it here JSON diff viewer

• Just started on Canvas playground
• Canvas cheatsheet
• unicode flags cheatsheet
• small internal improvements on SEO for cheatsheets

• tuned codemirror dracula theme for better "selected" visibility
• "Add Element" button in the Graphviz playground has a dropdown with options
• new ASCII Tree tool is added
• blog post about ASCII is published

• ASCII characters page - to just see all ASCII characters in one place
• ASCII Box Drawing - to see how to draw shapes/boxes/trees with ASCII
• ASCII Comment Art - fun ASCII art to use in code comments
• Text to ASCII Art - text to ascii art for comments (big letters)
• Added popup/full-width to ddl-to-diagram page

• Added pan/zoom/full width controls for MermaidJS diagrams see MermaidJS Playground Page
• Added pan/zoom/full width controls for Graphviz diagrams see Graphviz Playground Page

Added premium packages for the site and pricing page, see at Pricing page

Added download as PNG and copy as RichText options for google doc/word export of diagrams:

• MermaidJS editor
• Graphviz
• DDL to ERD diagram

• Added a new blog post build mermaidjs markup in python
• Updated the mermaidJS cheatsheet with new examples on style, subgraph, and more.

• Add Table DDL tab to the SQL playground page
• Tables show row count e.g customers (10)

• Display error in the MermaidJS editor when the markup is invalid.

see XML formatter page

• show inline errors in the editor
• more examples of sqlite imports
• updated layout see SQL playground page

• added AI on python playground
• added AI on JS playground
• added AI on Regex tester page

• website is rewritten from scratch from GatsbyJS to NextJS (still static site rendering)
• from JS to TS