19 privacy-first utilities

Developer & sysadmin tools

Ordinary utilities run in your browser. This connected build also provides disclosed DNS, HTTP, single-port TCP, and one-hour read-only MySQL sessions.

Online MySQL & Database Tools01

A free read-only MySQL client plus phpMyAdmin and Adminer with SSH tunnel support for shared hosting that blocks direct remote database access.

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Online MySQL client & browser toolsInspect an authorized MySQL server, or launch phpMyAdmin and Adminer with SSH tunnel support when shared hosting blocks remote MySQL.

Network & DNS Tools05

Local IPv4 analysis plus opt-in DNS, HTTP, single-port connectivity, passive banner, and verified TLS diagnostics through reviewed paths.

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DNS record lookupLook up selected DNS record types through a disclosed, fixed Cloudflare resolver path.Online HTTP client & API testerImport a browser cURL or fetch request, send one bounded public HTTP request, and inspect its status, response headers, body, redirects, and timing.Online TCP port checkerCheck one public TCP port from the internet and review a safe telnet-style transcript with resolved IP, connection time, and optional server banner.SSL/TLS certificate checkerCheck SSL certificate expiry, trust, hostname, SANs, chain, SHA-256 fingerprints, protocol, cipher, and ALPN with a verified live TLS handshake.IPv4 CIDR calculatorCalculate network, broadcast, mask, wildcard, and usable address range.

Encoding & Decoding Tools02

Browser-based Base64 and URL encoding tools with correct UTF-8 handling, instant output, and no uploaded text.

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Base64 encoder / decoderEncode Unicode text to Base64 or decode Base64 back to UTF-8.URL encoder / decoderEncode or decode URL components safely in your browser.

Developer Tools08

Free browser utilities for code, URLs, JWT verification, hashes, UUIDs, semantic versions, and colors, built for quick development checks.

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Code formatter & beautifierFormat and syntax-color JavaScript, TypeScript, JSON, CSS, HTML, Markdown, and PHP locally.JavaScript, JSON & CSS minifierMinify JavaScript, JSON, or CSS with syntax-aware, bundled processors in your browser.URL parserBreak a URL into protocol, host, path, query parameters, and fragment.JWT decoder & verifierDecode claims, check time validity, and optionally verify a signature with an uploaded PEM certificate or public key.Hash & checksum calculatorCalculate CRC32, MD5, SHA-1, SHA-2, or SHA-3 digests locally as you type.UUID generatorCreate cryptographically random UUID v4 or time-ordered UUID v7 identifiers.Semantic version compareValidate and compare two SemVer 2.0 version strings.Color converterConvert colors between HEX, RGB, and HSL formats.

Text Tools02

Private text utilities for sorting lines, removing duplicates, and counting words, characters, lines, paragraphs, and UTF-8 bytes.

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Line sorter & deduplicatorSort lines, remove duplicates, or do both in one pass.Text statisticsCount words, characters, lines, sentences, paragraphs, and bytes.

Date & Number Tools01

Convert Unix timestamps between epoch seconds, milliseconds, UTC, ISO 8601, and local date formats in your browser.

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Unix timestamp converterConvert Unix seconds or milliseconds to readable UTC and local dates.

A safer utility directory

One clear purpose per page

Every tool includes a worked example, limits, privacy behavior, and answers to common questions. Other live lookups, general network proxies, and remote scanners remain excluded.

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