Uvlio

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uvlio · workbench68 tools

Browser-first utility console

Free Online Toolsfor Files, Text, Images & More

68 browser-local tools. No upload, no signup, instant results.

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JSON FormatterBase64 Encoder / DecoderTimestamp ConverterImage Compressor & ConverterPDF MergerUUID Generator
Developer32Utility20PDF7Text7Calculator2

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32

Developer

Tools for developers: formatters, encoders, converters, and more

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20

Utility

Everyday browser utilities: image helpers, generators, converters

utility
7

PDF

Browser PDF tools: merge, split, compress, protect, and watermark

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7

Text

Text tools: word count, case conversion, diff, and more

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2

Calculator

Calculators: percentage, unit conversion, and more

calculator

Popular Tools

Tools people open most often.
JSON Formatter
Format, validate, minify, sort keys and inspect JSON outline locally.
Base64 Encoder / Decoder
Encode/decode Unicode text, URL-safe Base64, and small files in the browser.
Timestamp Converter
Convert Unix timestamps, batch date strings, ISO, local time and generate timestamps from date input.
Image Compressor & Converter
Compress images in the browser, convert to WebP / AVIF / JPEG / PNG, resize dimensions and compare file size savings instantly.
PDF Merger
Merge multiple PDF files locally, reorder them, remove files, and export one combined PDF without uploading anything.
UUID Generator
Generate UUID v1, v3, v4, v5, v6 and v7 with namespace, batch output, uppercase and hyphen options.
Password Generator
Generate strong random passwords with length, character sets, memorable mode and ambiguity filters.
QR Code Generator / Decoder
Generate QR codes from text and decode uploaded QR images in one browser tool.