ZechKit

Zech Dev

Contains ads

About this app

ZechKit is an all-in-one offline utility toolkit featuring 100+ native calculators, unit converters, PDF editor tools, QR & barcode scanner/generator, CSV spreadsheet & SQLite database manager, developer utilities, and security tools.

Replaces dozens of single-purpose apps with one lightweight, privacy-first toolkit. 100% offline—no accounts, no subscriptions, zero data tracking. Everything runs locally on your device.

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🌟 ALL 14 TOOL CATEGORIES
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1. 🧮 100+ SMART CALCULATORS
• Finance: Loan EMI, Mortgage, Compound Interest, Auto Loan, Simple Interest, ROI, Margin & Markup.
• Taxes & Business: Sales Tax, VAT/GST, Tip & Bill Splitter, Discount & Percentage.
• Health & Fitness: BMI, BMR, Body Fat %, Daily Calorie & TDEE, Ideal Weight.
• Date & Math: Age Calculator, Date Difference, Leap Year, Work Hours, Fractions.

2. 📐 UNIT CONVERTERS
• 20+ Categories: Length (m, km, mi, ft), Weight (kg, lb, oz), Temp (C, F), Volume (l, gal), Area, Speed, Pressure, Power, Energy, Fuel (MPG) & Storage (MB, GB, TB).
• Custom Pairs: Save custom conversion shortcuts for 1-tap access.

3. 📄 OFFLINE PDF TOOLS
• Merge & Split: Combine multiple PDFs or extract page ranges.
• Compress PDF: Shrink file size with multi-tier compression.
• Convert: High-res PDF to JPG/PNG & Images to PDF booklet.
• Edit: Reorder, rotate 90°/180°/270°, and sign PDFs.

4. 📱 QR & BARCODE STUDIO
• QR Generator: Custom QR for URLs, Wi-Fi, vCards, SMS & Events with styles.
• Dual Scanner: Live camera scan & 100% offline photo QR decoder.
• Barcodes: Generate & scan 1D barcodes (EAN-13, UPC-A, Code 128, Code 39).

5. 📊 DATA & SPREADSHEETS
• CSV Editor: In-place cell editing with sticky toolbar, undo/redo & row CRUD.
• Converter: Batch convert CSV, Excel (XLSX), JSON, and TSV.
• Manager: Split datasets with pagination & merge CSV files.
• SQLite: Inspect schemas, run SQL queries, view data grids & export .db.

6. 💻 DEVELOPER TOOLS
• JSON Studio: Formatter, Validator & Minifier with syntax trees.
• Encoders: Base64, URL Encoder/Decoder, HTML Entity Encoder.
• Code Tools: JWT Inspector, RegEx Tester, Markdown Preview & UUID.

7. 🔒 SECURITY & CRYPTO
• Passwords: Strong password generator & brute-force analyzer.
• Crypto: Instant MD5, SHA-1, SHA-256, SHA-512 hashes & Secret Sharing.

8. ✍️ TEXT UTILITIES
• Analysis: Word, character, sentence & reading time counter.
• Tools: Case Converter (UPPER, lower, Title, camel, snake), line sorter, diff.

9. 🖼️ IMAGE TOOLS
• Compress & Resize: Offline photo compressor, resizer & crop.
• Conversion: Convert JPG, PNG, WebP & inspect EXIF metadata.

10. 🎵 AUDIO TOOLS
• Trimmer: Trim ringtones & cut audio with waveform preview.
• Recorder: Offline voice memo recorder & microphone tester.

11. 🎨 COLOR TOOLS
• Color Picker: Real-time HEX, RGB, HSL, HSV, CMYK conversions.
• Accessibility: WCAG Contrast Checker & Color Blindness Simulator.
• Palettes: Palette extractor & harmonious gradient maker.

12. 🌐 WEB TOOLS
• URL Inspector: Parameter parser & UTM Campaign Link Builder.
• Diagnostics: User Agent inspector and screen DPI diagnostics.

13. 🔍 SEO TOOLS
• Generators: Meta tags (title, description, canonicals) & Robots.txt.
• Site Helpers: XML Sitemap builder & Open Graph card previewer.

14. 📢 SOCIAL MEDIA TOOLS
• Limits: Character counters for X/Twitter, Instagram, LinkedIn, TikTok.
• Helpers: Caption cleaner, hook analyzer & hashtag extractor.

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🚀 WHY USERS CHOOSE ZECHKIT
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✔ 100% Offline: Calculate, edit PDFs & query databases anywhere.
✔ Zero Tracking: Your files never leave your device. 100% private.
✔ Fast & Fluid: Lightweight React Native with 60fps animations.
✔ Dark & Light Mode: High-contrast themes for battery savings.
✔ Favorites & History: Star favorite tools & resume recents in 1 tap.

Download ZechKit today—your all-in-one pocket utility toolkit!

What’s new

Added PDF tools for easy document management.
Added QR Code and Barcode tools for generating and scanning.
Added new Data tools for everyday file and data tasks.
Improved app performance and stability.
Fixed bugs and improved the overall user experience.