Toolkk: Tools, Calculator, PDF
Converter, QR, JSON & Password
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
1000+ free tools, most run locally for privacy: unit/base/currency converters, image compressor, PDF, QR, password & hash, JSON, Base64, regex and more — updated weekly.
Toolkk is an all-in-one online toolbox with 1000+ free, practical tools. No installation — open and use instantly. Most tools run locally in your browser to protect your privacy. Whether you're a developer, designer, student or professional, Toolkk helps you calculate, convert, process and look things up — all in one place.
CALCULATE & CONVERT
Scientific calculator, percentage calculator, age calculator, loan & mortgage calculator, interest calculator, BMI, date duration, tax calculator; unit converter (length, weight, temperature, area, volume, speed, pressure), currency converter, base converter (binary/octal/decimal/hex), roman numerals and timestamp converter.
IMAGE TOOLS
Image compressor, image format converter (PNG/JPG/WebP/GIF/BMP), crop & resize, watermark, image stitching, image to PDF, Base64 image, color picker & color converter (HEX/RGB/HSL/CMYK), QR code reader.
PDF & DOCUMENTS
PDF converter, PDF compressor, image to PDF, merge & split PDF, Markdown preview & convert, rich text tools.
QR & BARCODE
QR code generator (URL/text/contact/WiFi), QR code reader, barcode generator, QR with logo.
DEVELOPER TOOLS
JSON formatter / validator / minifier, XML & YAML converter, Base64 encode/decode, URL encode/decode, Unicode encode/decode, regex tester, timestamp & date converter, hash generator (MD5/SHA1/SHA256), UUID generator, random string & number generator, Cron parser, JWT decoder, text diff, HTML escape.
SECURITY & ENCRYPTION
Password generator, encryption & decryption (AES/DES/RSA), hash checker, Base64, URL-safe encoding — keep your data and privacy safe.
TEXT TOOLS
Word & character counter, case converter, text dedupe, remove blank lines, sort lines, Markdown editor.
DATE & TIME
Date duration, countdown, world clock, timestamp converter, Cron expression.
FINANCE
Loan & mortgage, interest & compound interest, currency converter, tax and ROI calculators.
HEALTH & LIFE
BMI, body fat, BMR, due date, random picker & decision wheel.
WHO IT'S FOR
- At work: schedule with date/workday tools, handle files with document & PDF tools.
- Developers: JSON, Base64, regex, timestamp, hash, UUID — right at hand, no site-hopping.
- Students & teachers: scientific calculator, unit & base conversion, a study companion.
- Designers & creators: image compression & conversion, color tools, QR codes.
- Everyday: BMI, due date and handy life calculators.
WHY TOOLKK
- 1000+ tools, updated regularly
- Instant access — no download or sign-up to start
- Privacy-first: most tools process locally, nothing uploaded
- Sync across web, app and mini-program
- Free essentials with optional Pro upgrades
Put a pocket-sized Swiss-army toolbox in your phone and get things done faster. Got feedback? Tell us in the app — we keep refining every tool.
Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s New in Toolkk 4.3.0
• Added rewarded access: watch a short video to unlock selected premium or restricted tools for one use.
• Added daily rewards, including limited-time membership access and Toolkk Coins.
• Improved file downloads, system sharing, image saving, and export workflows.
• Enhanced the launch experience, tool lists, icon loading, and tool detail pages.
• Improved Google Sign-In, English localization, and multilingual privacy content.
• Fixed issues that prevented some premium and paid tools from opening.
• Improved ad loading, stability, and overall performance.
Recently Added and Popular Tools:
Life & Health:
Reaction Time Test, Adult Height and Weight Chart (2026), Child Height and Weight Chart (2026), Calories Burned Calculator, Headphone Tester Pro, Spam Phone Number Lookup, Phone Number Value Estimator, Chinese Zodiac Lookup, Pants Size Chart, and Shoe Size Conversion Chart.
Office & Development:
Chinese Word Tracing Worksheet Generator, Excel to Phone Contacts Converter, Excel to JSON Converter, HTML Table Generator, Online Text Formatting Tool, Snake Case & Camel Case Converter, and Vertical Text Converter.
Finance:
Tax Late Fee Calculator, Yu’e Bao Earnings Calculator, Time Deposit Interest Calculator, Compound Interest Calculator, Interest Rate Change Repayment Calculator, Bank Deposit Interest Calculator, and Credit Card Installment Calculator.
Images & Creativity:
Solid Color Image Generator, Letter Icon Generator, Traditional Chinese Color Palette, Text-to-Speech Generator, and Online Audio Editor.
More Useful Tools:
Online Stopwatch Timer, Projector Throw Distance Calculator, Curtain Fabric Calculator, and Zen Text Encryption & Decryption Tool.
More useful tools are added regularly. Thank you for using Toolkk!
The developer, Chengdu Yunbyte Network Technology Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Other Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Chengdu Yunbyte Network Technology Co., Ltd.
- Size
- 84.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Advertising
- In-App Purchases
Yes
- 100 Point Craft Coins $0.99
- 500 Point Craft Coins $0.99
- Pro Lifetime Membership $39.99
- Premium Lifetime Membership $19.99
- Pro Annual Membership $29.99
- Pro Monthly Membership $1.99
- Premium Annual Membership $9.99
- Premium Monthly Membership $0.99
- 120,000 Point Craft Coins $149.99
- 10,500 Point Craft Coins $14.99
- Copyright
- © 2026 Byteee Inc.