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Small Tools. Big Utility.

Free online tools that respect your privacy

192 tools for JSON, text, passwords, money maths, networks and more. No signup, no clutter, and your data stays in your browser.

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Popular tools

Base64 Encoder/DecoderConvert text to and from Base64, including URL-safe Base64.Developer Tools JSON FormatterBeautify, minify and validate JSON with exact error locations.Developer Tools Password GeneratorCreate strong random passwords with a secure random generator.Security & Privacy Percentage CalculatorPercent of, percent change, and increase or decrease by a percent.Calculators Recipe BuilderChain decoders, formatters and converters into one reusable recipe.Data & Conversion UUID GeneratorGenerate random v4 UUIDs/GUIDs in bulk.Generators Word CounterCount words, characters, sentences and reading time.Text & Writing

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Developer ToolsFormat, validate, encode and decode the data you work with every day.28 tools Text & WritingCount, clean, convert and transform text.19 tools CalculatorsQuick, accurate calculators for money, maths and everyday life.34 tools Web & SEOBuild and check the pieces that make websites discoverable.13 tools Security & PrivacyGenerate strong secrets and hashes without them leaving your device.21 tools Design & ColourConvert colours, check contrast and generate CSS.17 tools Data & ConversionConvert and clean CSV, JSON, XML and YAML.15 tools Time & DateConvert timestamps and time zones and count the days between dates.19 tools Network ToolsWork with IP addresses, subnets and DNS.14 tools GeneratorsGenerate UUIDs, random values, codes and test data.12 tools PDF & Image ToolsMerge, compress and sign PDFs; compress, convert and resize images, on our sister sites.74 tools on ImageSpark and PDFSpark

PDF and image tools

Working with files? Our sister sites have you covered, with the same privacy promise: your files are processed in your browser and never uploaded.

ImageSpark· Free, private image tools

Compress, convert, resize, crop and clean up images, remove backgrounds, read QR codes and more. Your images never leave your device.

Open ImageSpark

PDFSpark· Free, private PDF tools

Merge, split, compress, sign, edit and convert PDFs, and turn Word files into PDFs. Your files never leave your device.

Recently added

DNS LookupSee every DNS record for a domain, with TTLs.Network Tools Domain WHOIS LookupRegistrar, dates, status and nameservers for a domain or IP.Network Tools Email Authentication CheckerCheck SPF, DKIM, DMARC, MTA-STS and BIMI for a domain.Network Tools HTTP Header CheckerFetch a URL and see its status code and response headers.Network Tools Meta Tag CheckerAudit a URL's SEO and social meta tags with a preview.Web & SEO Redirect CheckerFollow a URL's redirects and unshorten short links.Network Tools

Free, no signup

Every tool here is free to use without an account. Just open it and get on with your work.

Private by design

Tools run in your browser wherever possible, so what you paste never reaches our servers. Tools that do need a server say so clearly.

Fast and focused

Small pages with no clutter and no intrusive ads. Each tool does one job and does it well.