Static-first tools
Privacy-first online tools that work fast
A static-first collection of browser-side tools for cryptography and developer workflows, built with clear privacy notes and fast static pages.
No signup, in-browser processing for free tools where noted, and clear limits on each page.
Salamyx Data Automation API
Calculators
Use lightweight calculators for VAT, discounts, margins, date differences, and working-day planning directly in your browser.
Featured picks; every live tool page is listed in the catalog.
VAT, Discount, And Margin Calculator
Calculate VAT-inclusive and VAT-exclusive prices, discount effects, markup, and margin percentages.
Date Difference And Working Days Calculator
Calculate day differences and business days between two dates with weekend exclusion options.
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Practical browser-side calculators for finance, dates, and everyday planning with explicit limitations.
Converters
This section will collect practical converters for files, text, encodings, colors, and developer workflows. The first production-ready conversion utility is currently Base64 encode and decode in the crypto section.
Featured picks; every live tool page is listed in the catalog.
Online Converters
A curated hub for in-browser converters. New converters are added only when they meet the quality and privacy bar.
Base64 Encode And Decode
The first full conversion utility is available now and runs locally in the browser.
Color Converter
Convert colors between HEX, RGB, and HSL in your browser with a live preview.
Number Base Converter
Convert integers between binary, decimal, hexadecimal, and octal in your browser.
Developer Utilities
Use small, reliable utilities for everyday developer tasks: UUID/GUID generation, JSON formatting, URL encoding, HTML escaping, timestamps, MIME and CSV checks, regex, token decoding, and integrity helpers.
Featured picks; every live tool page is listed in the catalog.
UUID / GUID Generator
Generate RFC 4122 version 4 UUIDs in your browser with copy-ready output and clear usage notes.
JSON Formatter And Validator
Format, validate, and minify JSON in your browser with clear error messages and copy-ready output.
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Focused browser-side developer utilities for UUIDs, encoders, color values, references, and formatting workflows.
Crypto tools
Use focused crypto utilities for hashing, encoding, random generation, and learning which tool fits your task. The first tools in this section are designed to run locally in the browser whenever possible.
Featured picks; every live tool page is listed in the catalog.
SHA-256 Hash Generator
Generate a SHA-256 hash in your browser. Input stays on your device and is processed with the Web Crypto API.
MD5 Hash Generator With Security Warning
Generate MD5 hashes for legacy checksums and learn why MD5 should not be used for security-sensitive work.
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Fast browser-based tools for hashing, Base64 encoding, secure random values, passwords, and practical cryptography references.
Text Tools
Use focused text utilities for counting words, changing case, and preparing content without uploading text to a server.
Featured picks; every live tool page is listed in the catalog.
Case Converter
Convert text between uppercase, lowercase, title case, sentence case, kebab-case, snake_case, and camelCase in your browser.
Word Counter
Count words, characters, lines, sentences, and estimated reading time locally in your browser.
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Browser-side text utilities for counting, case conversion, formatting, and everyday writing workflows.