Free Tools
A growing collection of fast, browser-based utilities for Power BI, data work, and text. Everything runs locally in your browser — no signup, no tracking, no data leaves your device.
BI / Data Visualization
Power BI Theme JSON Generator
Pick colors, preview them on a sample dashboard, and export a ready-to-import Power BI theme JSON file.
BI Color Palette Browser
Curated color palettes for dashboards — categorical, sequential, and diverging — all WCAG and colorblind-safe.
Contrast / WCAG Checker
Check foreground / background color contrast against WCAG AA and AAA standards for readable dashboards.
DAX Snippet Library
Searchable cheat sheet of common DAX patterns — time intelligence, ranking, top-N, and more — with copy buttons.
Date Dimension Generator
Generate DAX, Power Query M, or SQL code for a complete date dimension table.
CSV Inspector
Drop a CSV and instantly see column types, null rates, unique counts, and sample rows.
Data Converters
JSON ↔ CSV Converter
Convert between JSON and CSV in both directions, with options for nested fields.
Markdown → HTML
Convert Markdown to clean HTML with live preview.
Markdown → PDF
Write Markdown with LaTeX math, Mermaid diagrams, footnotes, and BibTeX citations. Export to a clean PDF with templates, headers, footers, and watermarks.
Case Converter
Convert text between UPPER, lower, Title, camelCase, snake_case, kebab-case and more.
Text Tools
Word & Character Counter
Count words, characters, sentences, paragraphs, and reading time.
Find & Replace
Find and replace text in bulk with optional regex support — fast and private.
Diff Checker
Compare text or code side-by-side. Highlights additions, deletions, and changes.
Online Notepad
Write and organise notes directly in your browser. Auto-saves locally.