📖 Guides
Guides
Answer-first explainers on the questions behind each tool — not marketing copy, the actual mechanics: what a tracking parameter does, why a PDF merger uploads your file, how a scam link is built.
How to Remove UTM Parameters From a URL
What utm_source, utm_medium, and utm_campaign actually do, why links carry them, and how to strip them before you share a link — without breaking it.
Read guideWhat Is fbclid, and How Do You Remove It?
What Facebook's fbclid tracking parameter does, why it appears on links you never touched an ad on, and how to remove it.
Read guideWhat Is gclid, and Does Removing It Break Tracking?
Google's gclid click-id parameter explained — what it's for, who it actually helps, and what removing it changes for you as the person sharing the link.
Read guideHow to Merge PDFs Without Uploading Them
Why most free PDF mergers upload your files to a server, and how to combine PDFs entirely on-device instead — no account, no page limit, nothing transmitted.
Read guideHow to Convert PDF to JPG at 300 DPI, Free
How DPI affects PDF-to-JPG output quality, what 300 DPI actually means for print vs. screen, and how to convert without losing sharpness.
Read guideHow to Split a PDF and Extract Specific Pages
How to pull individual pages or a page range out of a PDF without re-scanning or retyping anything, entirely in your browser.
Read guideHow to Spot a Fake UPI QR Code
The "scan to receive money" trap explained — how a fake UPI QR code actually debits you, and what to check before scanning one.
Read guideHow to Tell If a WhatsApp Forward Is a Scam
The patterns real WhatsApp scam forwards share — urgency, a shortened link, a too-good offer — and how to check one before you tap it.
Read guideBMI vs. Body Fat: What BMI Actually Measures
Why BMI is a ratio of weight to height, not a body-fat measurement, and where that gap matters most — plus what to check instead.
Read guideFD vs. RD vs. PPF: Which Gives More in 5 Years?
How fixed deposits, recurring deposits, and PPF actually compare over a 5-year horizon once compounding, tax treatment, and lock-in are accounted for.
Read guideHow to Compress an Image Without Losing Quality
What image compression actually trades away, the setting that matters more than the "quality" slider, and how to shrink file size while keeping images sharp.
Read guideComing soon
More guides are on the way — one tool, one real question, at a time.
- How to Read an Email Header to Find the Real Sender