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VuConvert

Developer tools

Format, encode, hash and decode — built for engineers.

22 tools · 22 run in your browser

VuConvert's developer tools format, encode, hash and decode data right in your browser — sensitive payloads never leave your device. Beautify and validate JSON, convert CSV↔JSON, encode Base64, generate QR codes and UUIDs, hash with SHA/MD5, decode JWTs, and format SQL or XML. Built for engineers who want fast, private utilities without pasting data into a server.

Base64 Encode / Decode

Encode or decode Base64 text and data URLs.

CSS Minifier

Compress CSS for production.

CSV to Excel

Convert a CSV file to an Excel .xlsx spreadsheet.

CSV to JSON

Convert CSV files or text to clean JSON instantly.

Diff Checker

Compare two texts and highlight every addition and removal.

Excel to CSV

Convert an Excel .xlsx file to plain CSV.

Hash Generator

SHA-1/256/384/512 and MD5 hashes.

HTML Minifier

Strip whitespace and comments from HTML.

HTML to Markdown

Convert HTML back to readable Markdown.

Image to Base64

Encode any image to a Base64 data URL for use in CSS or HTML.

JavaScript Minifier

Minify JavaScript safely.

JSON Formatter

Beautify, minify and inspect JSON.

JSON to CSV

Convert a JSON array of objects to a CSV spreadsheet.

JSON Validator

Validate JSON and pinpoint errors.

JWT Decoder

Decode JWT header and payload.

Markdown to HTML

Convert Markdown text to clean HTML instantly.

QR Code Generator

Create a QR code from any URL or text.

SQL Formatter

Pretty-print SQL queries.

URL Encode / Decode

Percent-encode or decode URLs.

UUID Generator

Generate v4 UUIDs in bulk.

XML Formatter

Indent and tidy XML.

XML to JSON

Convert XML documents to JSON format.

Frequently asked questions

Is my data sent to a server?
No — every developer tool runs in your browser, so tokens, configs and payloads stay local.
What tools are included?
JSON formatter, CSV↔JSON, Base64, URL encode/decode, hash generator, JWT decoder, UUID generator, QR code, diff checker and SQL/XML formatters.
Does Base64 or hashing encrypt my data?
No — encoding and hashing aren't encryption. Base64 is reversible by anyone; hashes are one-way fingerprints.
Is there a size limit?
No fixed limit; large inputs are processed in-browser.