Simple tools for everyday work.

MiniFiles is a collection of fast, browser-based utilities for developers. No signup, no uploads — everything runs locally in your browser.

Popular Tools

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JSON Formatter

Format and validate JSON instantly.

Developer · json-formatter

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JSON Minifier

Strip whitespace from JSON to reduce size.

Developer · json-minifier

Base64 Encoder / Decoder

Encode or decode Base64 strings.

Encoding · base64

URL Encoder / Decoder

Percent-encode or decode URL strings.

Encoding · url-encoder

UUID Generator

Generate random UUID v4 identifiers.

Generators · uuid-generator

Timestamp Converter

Convert between Unix timestamps and dates.

Converters · timestamp

HTML Formatter

Pretty-print minified or messy HTML.

Developer · html-formatter

CSS Minifier

Remove whitespace and comments from CSS.

Developer · css-minifier

JS Minifier

Merge and minify one or more JavaScript files.

Developer · js-minifier

Text Cleaner

Trim, dedupe, and tidy up messy text.

Text · text-cleaner

CSV → JSON

Convert CSV data into a JSON array.

Converters · csv-to-json

JSON → CSV

Convert a JSON array into CSV.

Converters · json-to-csv

Regex Tester

Test regular expressions against sample text.

Developer · regex-tester