Developer & Utility Tools Hub
Accelerate your workflow with 10 lightweight, offline-first tools. Zero installations, zero backend uploads, 100% private and secure.
JSON Formatter & Validator
Format, validate, parse and minify JSON code instantly with syntax helper checks.
QR Code Generator
Create custom QR codes with adjustable margin, size, foreground & background colors.
QR Code Scanner
Decode any QR code via device camera or by uploading an image — auto-detects URLs, emails, Wi-Fi, contacts.
Password Generator & Vault
Cryptographically secure passwords with cloud vault, length slider, strength indicator and encrypted account storage.
Base64 Encoder / Decoder
Convert plain text strings to Base64 format and decode them back safely client-side.
Local Image Converter
Convert WEBP, PNG, JPG, BMP formats browser-side with quality compression slides.
Unit Converter Pro
Convert Length, Weight, Temperature, Digital Storage and Data Rate metrics in real-time.
Regex Tester & Highlighter
Test regular expressions in real-time with visual group matches, flags and error helpers.
SQL Query Beautifier
Format complex SQL queries, uppercase commands, remove whitespaces and indent statements.
URL Component Enc/Dec
Encode/decode special characters in URL and break query parameters down into tables.
Network Engineer Pro Suite
Calculate subnets, plan VLSM, detect VPC overlaps, and generate firewall ACLs in real-time.
Why developers choose SmartToolKit
A single, focused hub for the small utilities you reach for dozens of times a day.
Privacy by default
Every tool runs entirely inside your browser. No data is uploaded, logged, or stored on a server without your action.
Zero-install speed
Open a tool and start working in under a second. No plugins, no accounts, no waiting for a build pipeline.
Bilingual interface
Every screen, hint and error message is fully translated between English and Modern Standard Arabic.
Truly free tier
All 10 utilities are available with generous limits. Cloud vault and ad-free mode are optional Pro upgrades.
Frequently asked questions
Are these tools really free?+
Yes. All 10 developer utilities are free with no account required. Optional Pro features (cloud sync, expanded limits) are clearly labeled when they appear.
Do my files leave my computer?+
No. Every tool runs client-side in your browser. Files are processed locally and never uploaded to our servers.
Can I use these tools on mobile?+
Yes. Each utility is responsive and works on phones, tablets and desktops. The QR scanner uses your device camera with permission.
Do I need to create an account?+
No account is required for the free tier. Pro subscribers can optionally sync their vault and history across devices.
Ready to ship faster?
Pick any tool from the grid above and start working — no setup, no waiting.
Flexible Upgrade Plans
Get Started with Developer Tools Hub Pro
Choose a dedicated plan for this tool only, or unlock the entire smart toolkit suite to get 70%+ off!
Developer Tools Hub Pro
Dedicated plan for Developer Tools Hub
≈ 148 EGP /month
- Cloud-saved formatting history
- Encrypted password vault synced across all 10 tools
- Full synchronization across all your devices
- Expanded size limits for files/JSONs
- Secure cloud database backups
- No advertisements anywhere
- Dedicated 24/7 priority support
All-in-One Pro
Full unlimited access to ALL tools
≈ 443 EGP /month
- Full unlimited access to ALL tools
- CV Builder, PDF Pro, Social Auto Poster
- Scanner OCR, Email AI Writer, Dev Hub
- Lightning-fast priority processing
- Dedicated support & priority updates
- Ad-free experience & no watermarks
Processed securely via Paymob & Lemon Squeezy
Help us improve and develop this tool!
Your feedback drives us forward. Share a quick thought, a feature idea, or a bug you spotted — and we will make this tool better for you.
- Fast, no signup required
- We read every message
- Shipped updates based on you
Real opinions from people who used this tool