Private browser toolkit

QuickDev developer tools

Format data, encode text, calculate dates, inspect network values, and generate secure values directly in your browser.

Practical utilities with local processing

QuickDev is a collection of focused utilities for developers, testers, analysts, students, and technical writers. Most transformations run entirely on your device, so text pasted into a formatter, encoder, calculator, or generator is not uploaded to a QuickDev application server.

Choose a category below, then open the tool required for your task. Every tool includes a safe example so you can verify the result before using your own input.

Browse tool categories

EncodingBase64, URL, HTML, Unicode, hex, binary, and image conversions. JSONBeautify, minify, validate, view trees, and convert JSON, CSV, or XML. XMLFormat, validate, and minify XML documents locally. HTML, CSS & JavaScriptFormat and minify front-end code or preview isolated HTML. Date & timeCalculate ages and date differences or convert timestamps and timezones. Password & securityGenerate passwords and identifiers or calculate SHA-256 and SHA-512 hashes. SQLMake SQL queries easier to read with local formatting tools. Developer referencesGenerate GUIDs, inspect cron expressions, and look up HTTP or MIME values. TextCount, sort, deduplicate, reverse, and change the case of text. NumbersCalculate percentages and BMI or convert units and number bases. NetworkParse URLs and user agents or calculate IPv4 CIDR ranges. Visual toolsCreate QR codes, select colors, and generate CSS gradients.

Using results responsibly

Review generated output before using it in production. Hash tools are one-way digest utilities and are not encryption. Password strength results are estimates, date and timezone results depend on browser data, and reference lookups should be confirmed against the specification relevant to your project.