#Tips
Every ToolBox article tagged Tips - guides, tutorials and tips on using our free online tools, collected in one place. Including: Calculate 22K Gold Price per Gram and Tola (Live Rate); Common Regex Patterns You Can Test Online (Email, URL, Phone); Compress Images for Faster Web Pages (Core Web Vitals); Compress Video for WhatsApp and Instagram (Free Size Limits Guide).
FeaturedCalculate 22K Gold Price per Gram and Tola (Live Rate)
Convert the live gold spot price into 22K and 24K per gram, tola and ounce. Hallmarks, making charges and a free calculator.
Common Regex Patterns You Can Test Online (Email, URL, Phone)
Test email, URL, phone and whitespace regex against real samples before production. Live highlighting, no paste-into-a-black-box.
FeaturedCompress Images for Faster Web Pages (Core Web Vitals)
Oversized photos are the usual reason a page feels slow. Compress JPGs and PNGs for LCP and page weight - free in your browser.
FeaturedCompress Video for WhatsApp and Instagram (Free Size Limits Guide)
Hit WhatsApp, Instagram Reels and email video size limits without a desktop editor. Practical targets, trim-first advice, free compressor.
Convert HEIC to JPG on Mac and Android (Free, No App Store)
Open iPhone HEIC photos on Mac previews, Android phones and websites by converting to JPG in the browser. No extra codec pack required.
FeaturedCreate a WiFi QR Code Free (Guests Connect Without the Password)
Make a Wi-Fi QR code guests can scan to join your network - WPA, WEP or open, including hidden SSIDs. Free in the browser, no signup.
FeaturedMake a Transparent PNG from a Photo (Free Background Remover)
Turn a photo into a transparent PNG for logos, listings and slides. Free AI background remover with an editor for leftover edges.
FeaturedMerge PDF Files for a Job Application (CV, Certificates, ID)
Combine a CV, cover letter and certificates into one PDF for job portals. Order pages, keep it under upload limits, free in your browser.
Split a PDF into Separate Pages for Email and Forms
Turn one long PDF into single-page files or a page range for email and government forms. Free splitter, private in your browser.
UUID vs GUID: Generate Version 4 IDs Online (When to Use Which)
UUID and GUID are the same 128-bit identifier. When to use v4, what is not a unique ID, and a free in-browser generator.
How to Read Emoji Puzzles: A Field Guide to Emoji Rebus Clues
Every emoji in a puzzle is doing one of four jobs. Learn to spot which, and most clues fall apart in seconds.
Jigsaw Puzzle Sizes Compared: Which Grid Suits Your Photo and Your Time?
A 3×3 is a two-minute break; a 10×10 is an evening. How to match the grid, the photo and the mode to the time you actually have.