Alex Rel (@RealAlexRel) header
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Alex Rel

@RealAlexRel
alexrel.com
Joined August 2026
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🚀 Free, client-side developer tools. No cloud uploads, telemetry, or account signups. • 100% browser-side privacy • Instant local processing • JSON, JWT, Regex, PDF, SQL & more 🔗 alexrel.com/tools/ #DevTools #WebDev #BuildInPublic
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Three keyboard layouts on a Mac = cycling through them and still landing on the wrong one. So I built EzSwitch: left ⌘ for one language, right ⌘ for the other. Typed "ghbdtn" instead of "привет"? Double Shift fixes it. Free, open source, macOS 14+ alexrel.com/ezswitch
EzSwitch for Mac: keyboard layout switching in one tap

EzSwitch for Mac: keyboard layout switching in one tap

Switch keyboard layouts with Command, fix mistyped text with a double Shift, and build your own word substitutions. A free, open-source macOS menu bar app.

alexrel.com
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🔒 Decode obfuscated strings & multi-encoded payloads automatically! Auto-detect & decode Base64, Hex, URL encoding, HTML entities & multi-layer strings. ⚡ 100% browser-based. alexrel.com/tools/universal-… #CyberSecurity #DevTools #WebDev
Universal Decoder — Multi Decoder For Text And Ciphers

Universal Decoder — Multi Decoder For Text And Ciphers

Paste unknown text, get every possible decoding ranked by likelihood. Runs entirely in your browser.

alexrel.com
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⚡ Generate realistic mock JSON & CSV test data in your browser! Mock names, emails, UUIDs, dates & custom schemas for DB seeding & API prototyping. ⚡ 100% browser data generator. alexrel.com/tools/data-mocke… #WebDev #Testing #APIs #Database
Data Mocker — Fake JSON & CSV Data Generator

Data Mocker — Fake JSON & CSV Data Generator

Build a schema and generate realistic mock data as JSON or CSV.

alexrel.com
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🎨 Optimize SVGs & compress PNG images without cloud uploads! Clean SVG markup, strip metadata, compress PNG with UPNG/OxiPNG pipelines locally. ⚡ 100% browser optimization. alexrel.com/tools/image-opti… #SVG #WebDev #Performance #Frontend
Image Optimizer — Compress PNG, JPEG & WebP

Image Optimizer — Compress PNG, JPEG & WebP

Resize and compress raster images locally with target sizes, comparison and ZIP download.

alexrel.com
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🧮 Fast Unix timestamp converter & period bounds inspector! Convert dates bi-directionally, check day/month bounds & calculate exact durations. ⚡ 100% browser-based. alexrel.com/tools/epoch-coun… #WebDev #Backend #DevTools #Unix
Unix Timestamp Converter with Code Snippets

Unix Timestamp Converter with Code Snippets

Unix timestamp to date and back in any IANA timezone, period boundaries, batch conversion, durations, and ready snippets for 8+ languages.

alexrel.com
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🔒 Decode & inspect JSON Web Tokens (JWT) safely in your browser! Check headers, payload claims, expiration dates & signatures. Zero server uploads. ⚡ 100% client-side privacy. alexrel.com/tools/jwt-inspec… #JWT #CyberSecurity #WebDev #OAuth
Verify a JWT Signature Locally — HS256, RS256

Verify a JWT Signature Locally — HS256, RS256

Decode a JWT and verify HS256, RS256 or ES256 signatures locally. The token never leaves the browser.

alexrel.com
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🎨 Convert colors & check WCAG contrast accessibility in browser! HEX, RGB, HSL & OKLCH converter, contrast verifier & palette generator from images. ⚡ 100% client-side. alexrel.com/tools/color-tool… #CSS #WebDesign #a11y #Frontend
OKLCH Converter & WCAG Contrast Checker

OKLCH Converter & WCAG Contrast Checker

Convert HEX, RGB, HSL and OKLCH, build palettes, extract colors from an image, check WCAG contrast.

alexrel.com
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⚡ Generate cryptographically secure random passwords in browser! Custom length, character sets, entropy calculation & Web Crypto API memory safety. ⚡ 100% local, zero server logs. alexrel.com/tools/password-g… #CyberSecurity #Passwords #DevTools
Password Generator with Entropy in Bits

Password Generator with Entropy in Bits

Strong passwords from a cryptographically secure generator, with strength shown in bits of entropy.

alexrel.com
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⚡ Generate strong, memorable passphrases with EFF wordlists! Create high-entropy passwords using EFF Large/Short wordlists via Web Crypto API. ⚡ 100% local & cryptographically secure. alexrel.com/tools/passphrase… #CyberSecurity #Passwords #Privacy
Passphrase Generator — Memorable Random Word Passwords

Passphrase Generator — Memorable Random Word Passwords

Generate secure passphrases from the EFF long wordlist or classic Diceware wordlists.

alexrel.com
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🔒 Encrypt, decrypt & identify ciphers privately in your browser! Cipher identifier, multi-encoder & client-side AES-GCM encryption with Web Crypto API. ⚡ 100% private, zero uploads. alexrel.com/tools/encryption… #Cryptography #AES #CyberSecurity
Encryption Toolbox — Cipher Identifier, Multi Encoder & AES-GCM

Encryption Toolbox — Cipher Identifier, Multi Encoder & AES-GCM

Identify unknown ciphers, encode with every cipher at once, encrypt with AES-256-GCM, solve classics. Runs in your browser.

alexrel.com
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📊 Turn Telegram chats into structured sales pipelines! Automated contact cards, custom user fields, tag management & activity timelines. ⚡ Built-in CRM for Telegram. telego.io #CRM #LeadGen #TelegramMarketing #Growt
TeleGo: No-Code Telegram Bot Builder with AI and Payments

TeleGo: No-Code Telegram Bot Builder with AI and Payments

A Telegram bot that answers client questions, collects consultation requests, and takes bookings and payments for you. Describe it in plain words and the AI assistant sets it up. No code needed.

telego.io
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⚡ Generate cryptographically secure random passwords in browser! Custom length, character sets, entropy calculation & Web Crypto API memory safety. ⚡ 100% local, zero server logs. alexrel.com/tools/password-g… #CyberSecurity #Passwords #DevTools
Password Generator with Entropy in Bits

Password Generator with Entropy in Bits

Strong passwords from a cryptographically secure generator, with strength shown in bits of entropy.

alexrel.com
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💻 Minify or obfuscate JavaScript code directly in your browser! Compress JS bundle size or obfuscate identifiers & string literals for code protection. ⚡ 100% local processing. alexrel.com/tools/js-minifie… #JavaScript #WebDev #Frontend #DevTools
JS Minifier & Obfuscator — Terser, String Arrays, Control Flow

JS Minifier & Obfuscator — Terser, String Arrays, Control Flow

Terser minification and real JavaScript obfuscation — all client-side, no upload.

alexrel.com
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🔒 Build strict Content Security Policy (CSP v3) headers to stop XSS! Construct directives (script-src, style-src), audit policy risks & export headers. ⚡ 100% browser builder. alexrel.com/tools/csp-builde… #CyberSecurity #AppSec #WebDev #CSP
Content Security Policy & Security Header Suite Builder

Content Security Policy & Security Header Suite Builder

Build CSP v3 and a full security header suite (HSTS, X-Frame-Options, COOP, COEP, CORP, Permissions-Policy, Referrer-Policy), evaluate security scores, and export Nginx and Apache rules online.

alexrel.com
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🎨 Trace raster images into clean vector paths in browser! Bézier node editing, centerline tracing, vector primitives & clean SVG export. ⚡ 100% client-side, zero server uploads. alexrel.com/tools/vector-pai… #SVG #VectorArt #WebDev #DevTools
Vector Painter — Image to SVG Tracer

Vector Painter — Image to SVG Tracer

Trace an image into editable bézier paths and vector primitives. Outline and centerline tracing, clean SVG export.

alexrel.com
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🎨 Draw pixel art directly in your browser with zero bloat! SVG grid editor with selection tools, canvas transforms, palette tools & crisp SVG/PNG export. ⚡ 100% browser-side, zero uploads. alexrel.com/tools/pixel-pain… #PixelArt #IndieDev #SVG #GameDev
Pixel Painter — Convert PNG to SVG Pixel Art / Raster to Vector

Pixel Painter — Convert PNG to SVG Pixel Art / Raster to Vector

Convert any image into clean SVG pixel art — raster to vector. Draw, palette-manage, export as SVG or PNG.

alexrel.com
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🧮 IPv4 & IPv6 CIDR subnet calculations made simple! Calculate IP ranges, broadcast addresses, usable host counts, subnet masks & wildcard bits. ⚡ 100% browser subnet calculator. alexrel.com/tools/subnet-cal… #Networking #DevOps #SysAdmin #IPv6
Subnet Calculator — CIDR, IPv4 & IPv6

Subnet Calculator — CIDR, IPv4 & IPv6

Calculate network, broadcast, usable range, netmask and binary from a CIDR block.

alexrel.com
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🎨 Split secret text into visual generative artwork shares! Create abstract noise graphic shares. Secret is unreadable until shares overlap! ⚡ 100% client-side visual crypto. alexrel.com/tools/visual-cry… #Cryptography #GenerativeArt #DevTools
Visual Cryptography — Text to Abstract Art & Secret Shares

Visual Cryptography — Text to Abstract Art & Secret Shares

Create recoverable abstract data art or a matching pair of secret image shares, with print-scale guidance and repeatable recovery tests.

alexrel.com
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🔒 Detect & strip AI generator markers directly in your browser! Reads C2PA manifests, inspects XMP/IPTC tags & runs RS pixel steganalysis with anomaly heatmap. ⚡ 100% client-side privacy. alexrel.com/tools/ai-waterma… #AI #C2PA #Privacy #CyberSecurity #DevTools
AI Watermark Detector | Check Images for C2PA & AI Markers

AI Watermark Detector | Check Images for C2PA & AI Markers

Inspect supported images for C2PA, declared AI metadata, and generic pixel anomalies. Local analysis with explicit coverage limits.

alexrel.com
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🧮 Convert numbers across Binary, Octal, Dec, Hex & IEEE 754 float! Inspect bit representations, sign/exponent/mantissa & convert integer bases. ⚡ 100% browser converter. alexrel.com/tools/number-bas… #ComputerScience #Coding #WebDev #Math

Convert Any Base 2–36, Roman Numerals & Gematria

Binary, octal, hex and any base 2–36, plus Roman numerals, Hebrew gematria and Greek numerals.

alexrel.com
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