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Technology Tools
Networking, data, and developer utility tools for technical workflows.
Last updated: March 13, 2026
Developer utilities
Debug timestamps, patterns, and token payloads faster
Use the converter and decoder tools for quick inspection, then jump into the guides when you need the surrounding reasoning or safer workflow.
Timestamp Converter Guide
Learn how to convert Unix seconds, Unix milliseconds, and ISO date strings without mixing up time zones or timestamp units.
Epoch Time Explained
Understand what epoch time means, why Unix timestamps exist, and how to interpret them correctly in applications, logs, and tokens.
Regex Cheat Sheet
Use this regex cheat sheet to review common pattern parts, testing workflow, and replacement-preview habits before shipping expressions into production code.
JWT Decoder Guide
Learn how to inspect JWT header and payload fields, check timestamp claims, and avoid confusing token decoding with token verification.
Image and PDF conversion
Pick the right format before you convert or compress
Move from format comparisons into image conversion and then into the PDF step that fits the next handoff.
PNG vs JPG vs WEBP
Compare PNG, JPG, and WEBP image formats so you can choose the right output for quality, transparency, compression, and workflow needs.
WEBP to JPG Guide
Learn when WEBP to JPG conversion makes sense, what quality tradeoffs to expect, and how to handle transparency before exporting.
Tools in Technology
Explore focused utilities built for common technology workflows.
Password Generator
Generate strong random passwords with configurable length, character sets, and similarity filtering, then copy secure results instantly.
URL Shortener
Shorten long links using public providers with provider selection, quick copying, and shareable query state for repeat workflows.
JSON Formatter & Validator
Validate, format, and minify JSON with optional key sorting, output metrics, and one-click copy or download.
Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 back to text with optional URL-safe output and padding controls.
Image Compressor & Resizer
Compress and resize images directly in the browser with width and height controls, quality tuning, format conversion, and instant file download.
PNG to JPG Converter
Convert PNG images to JPG in the browser with adjustable quality and white-background flattening for transparency.
WEBP to JPG Converter
Convert WebP images to JPG in the browser with adjustable quality and white-background flattening for transparent areas.
WEBP to PNG Converter
Convert WebP images to PNG in the browser while preserving transparency for editing, design, or upload workflows.
JPG to PDF Converter
Merge one or multiple JPG images into a downloadable PDF with page size, orientation, and margin controls.
Word to PDF Converter
Convert DOCX files into browser-generated PDFs with configurable page size, margin, and base font settings while preserving readable text, headings, lists, and simple table rows.
PDF to Word Converter
Convert text-based PDF pages into a browser-generated DOCX file with page-selection support and explicit layout-fidelity limits.
Merge PDF
Combine multiple PDF files into one output document while preserving page order from your selected files.
Split PDF
Split a PDF by selected page ranges or export every page as separate PDF files in a ZIP archive.
Rotate PDF
Rotate all or selected PDF pages by 90, 180, or 270 degrees and download a corrected output file in the browser.
Delete PDF Pages
Remove selected pages from a PDF file in the browser and download a new output document without those pages.
PDF to JPG Converter
Convert selected PDF pages into high-quality JPG images with page range, scale, and quality controls.
PDF Compressor
Compress PDF files in the browser with scale and quality controls, before-and-after size comparison, and instant download.
Internet Speed Test
Test internet download speed, upload speed, ping, and jitter with same-origin server checks, selectable sample profiles, and shareable settings.
UUID & Hash Generator
Generate UUID v4 batches and compute text hashes with MD5 or SHA-256 for compatibility checks, fingerprints, and workflow automation.
QR Code Generator
Generate QR codes for links, text, email, call, SMS, Wi-Fi, events, vCards, and more with frame styles, custom colors, and downloadable PNG or SVG output.
CIDR Calculator
Calculate IPv4 CIDR subnet details from an IP address and prefix length, including network address, broadcast address, subnet mask, host range, usable hosts, and address classification.
Timestamp Converter
Convert Unix timestamps in seconds or milliseconds into UTC and local dates, or turn ISO date strings back into epoch values.
Regex Tester
Test regular expressions in the browser with pattern flags, match detail, capture-group output, and replace preview.
JWT Decoder
Decode JWT header and payload segments in the browser, inspect issued and expiry timestamps, and review token claims without sending data to a server.
CSV to JSON Converter
Convert CSV rows into JSON objects with configurable delimiter handling and optional first-row headers directly in the browser.
JSON to CSV Converter
Convert JSON objects or arrays into CSV output with flattened nested keys and browser-side preview for simple data export workflows.
WEBP Converter
Convert images between WEBP, PNG, and JPG in the browser with quality controls for lightweight image workflow adjustments.
Color Contrast Checker
Check foreground and background color contrast ratios against WCAG thresholds for normal and large text with live preview.
Color Converter
Convert color values between HEX, RGB, HSL, and OKLCH with synchronized output and a live swatch preview.
CSS Gradient Generator
Create linear CSS gradients with angle and color-stop control, live preview, and copyable background declarations.
Box Shadow Generator
Create CSS box shadows with offset, blur, spread, color, and opacity controls plus live preview and copyable output.