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Convert, calculate, generate, optimize, edit, analyze, and transform files and data with fast, browser-based tools.
Quick access to some of ZechKit's most useful browser-based utilities.
Convert CSV & TSV files into formatted Excel (.xlsx) workbooks without losing leading zeros.
Compress WebP, PNG, JPEG, and AVIF images up to 85% locally in canvas memory.
Compress MP4, WebM, and MOV videos up to 90% in-browser with WebAssembly.
Combine multiple PDF documents into a single organized file with instant drag-and-drop.
Cut and slice audio tracks with millisecond waveform precision and smooth volume fade curves.
Generate cryptographically secure passwords and passphrases with custom entropy controls.
Beautify, format, validate, and repair raw JSON data with instant syntax tree view.
Convert length, mass, area, temperature, speed, volume, and digital storage accurately.
Analyze word counts, character density, sentence structure, and estimated reading time.
Split long podcast recordings and audio files into equal parts or custom chapter cues.
Resize width and height in pixels or percentages with aspect ratio lock and presets.
Generate complete Google, Open Graph, and Twitter SEO meta tags with live SERP preview.
Calculate exact age in years, months, days, hours, and minutes with next birthday countdown.
Encode strings and binary files to Base64 Data URIs, or decode Base64 back to text.
Discover specialized tool suites engineered for speed, accuracy, and client-side privacy.
CSV viewer, Excel to CSV, batch merger, whitespace cleaner, and deduplication.
Merge, split, compress, sign, watermark, rotate, and reorganize PDF documents.
Smart compression, dimension resizer, format conversion, and palette extraction.
In-browser video compressor, bitrate optimizer, and format scaler via WebAssembly.
MP3 waveform cutter, chapter splitter, audio joiner, voice recorder, and volume booster.
JSON formatter, code minifiers, Base64 encoder, regex tester, and hash generators.
File checksum calculator, password generator, entropy auditor, SHA-256 hashes, and UUIDs.
Meta tag generator, robots.txt, XML sitemaps, Open Graph, and JSON-LD schema builder.
Word counter, text diff comparison, case converter, slug generator, and string analysis.
109+ financial loan calculators, health BMI, math tools, and construction estimators.
Length, mass, area, temperature, speed, volume, pressure, and digital memory.
Age calculator, date difference, working days, timezones, stopwatch, and pomodoro.
HEX/RGB/HSL converters, WCAG 2.1 contrast ratio checker, and palette generators.
JWT debugger, URL encoder/decoder, HTTP status code lookup, and MIME types.
Hashtag generator, YouTube thumbnail grabber, and post caption character formatters.
Bulk CSV QR generator, logo QR codes, digital business cards, and barcode tools.
Convert length, mass, area, temperature, speed, volume, pressure, power, energy, and digital memory instantly with live formulas and decimal precision.
Engineered with a modern browser-first architecture for maximum speed, zero tracking, and effortless everyday utility.
Instant in-browser execution with zero network latency, slow server queues, or waiting times.
100% client-side memory processing. Your files, confidential text, images, and numbers never leave your device.
300+ utilities across 13 specialized suites covering PDF editing, media processing, calculations, and coding.
Fully responsive, touch-friendly, lightweight, and accessible on desktop, tablet, and mobile browsers.
Jump straight to the right tool for your specific workflow.
View, convert, clean, merge, and deduplicate spreadsheets
Merge, split, compress, sign, watermark, and reorder pages
Compress, resize, crop, convert formats, and extract palettes
Length, mass, area, temperature, speed, volume, and data
Financial loans, body mass index, math, and mortgages
Password generators, entropy checkers, hashes, and UUIDs
Meta tags, robots.txt, XML sitemaps, and JSON-LD schemas
Trim waveforms, split chapters, record voice, and boost audio
Word counts, case conversions, text diff, and lorem ipsum
JSON formatters, minifiers, base64 encoders, and regex tools
HEX/RGB converters, WCAG contrast checkers, and pickers
Age calculation, time differences, timezones, and timers
JWT debugger, URL encoder, HTTP status codes, and MIME types
Take ZechKit with you. Access 100+ useful tools on Android, including calculators, converters, PDF tools, QR & barcode utilities, developer tools, and more.
Calculators, converters, and utilities in one unified mobile app.
Use supported tools without an internet connection on your Android device.
Designed for quick everyday tasks with instant startup and zero bloat.