Convert anything. Locally.
A small toolbox of file converters that run entirely in your browser. Nothing uploads. Install it once and use it offline forever.
Available tools
PDF to Markdown
Extract text and structure from PDFs. Falls back to OCR for scans.
Image Converter
Convert between WebP, PNG, and JPG with quality control.
Markdown ↔ HTML
Two-way conversion with live preview.
CSV ↔ JSON
Parse, validate and convert tabular data.
JSON ↔ YAML
Two-way conversion between JSON and YAML.
JSON ↔ TOML
Round-trip JSON and TOML config files.
XML ↔ JSON
Attribute-aware XML / JSON conversion.
HTML → Markdown
Paste messy HTML, get clean sanitized Markdown.
JSON → TypeScript
Infer TypeScript interfaces from a JSON sample.
cURL → fetch
Convert a curl command to JavaScript fetch().
Base64 ↔ Text
Encode and decode Base64 text instantly.
JWT Decoder
Inspect JWT header & payload. HS256 verify.
URL Encoder
Encode and decode URL components.
Hash Generator
MD5, SHA-1, SHA-256, SHA-384, SHA-512 for text or files.
UUID / NanoID
Bulk generate UUID v4, v7, NanoID, short IDs.
Timestamp
Unix ↔ ISO 8601 ↔ human date with timezones.
Color Converter
HEX, RGB, HSL, OKLCH, OKLAB with live preview.
QR Code Generator
Text, URL, WiFi, vCard → PNG or SVG.
Diff Viewer
Compare text or JSON side-by-side with highlights.
Regex Tester
Live match highlighting & capture-group inspector.
Lorem Ipsum
Lorem, Hipster, Pirate, Tech-jargon placeholder text.
JSON Formatter
Pretty-print, minify, validate. Tolerates JSONC.
CSV ↔ XLSX
Round-trip between CSV and Excel spreadsheets.
Image → PDF
Stitch JPG/PNG images into a multi-page PDF.
SVG ↔ PNG
Rasterize SVG at any size or optimize SVG markup.
EXIF Viewer
Inspect or strip photo metadata locally.
Password Generator
Strong random passwords with entropy meter.
Slugify
Clean URL slugs with custom separator and length.
Case Converter
camelCase, snake_case, kebab-case and more.
Cron Explainer
Decode cron expressions plus the next 5 runs.
Word Counter
Characters, words, lines, reading time.
Markdown Table
Paste CSV/TSV, get a clean Markdown table.
Number Base
Bin · Oct · Dec · Hex with BigInt and bitwise ops.
Line Sorter
Sort, dedupe, shuffle text lines instantly.
String Escape
Escape HTML, JS, CSS, regex, SQL, URL — both ways.
SQL Formatter
Pretty-print SQL for PostgreSQL, MySQL, BigQuery + more.
Minifier
Minify JS, CSS, and HTML with size savings.
URL Parser
Decompose, edit query params, and rebuild URLs.
Why Switchboard
Files are processed in your browser. They never touch a server.
Install to your home screen. Use it on a plane.
No round-trips. Conversion is as fast as your device.