· 3 min read
The 75% Attendance Rule: How Many Classes Can You Miss?
Formulas for how many classes you can skip and still keep 75% attendance, how many you must attend to recover, and how to plan the rest of the term.
Attendance · Students
Blog
Practical guides to image formats, PDF workflows and developer tasks, written alongside the tools.
· 3 min read
CGPA to Percentage: The Official Formula for CBSE, VTU, Anna University, AKTU and More
There's no single CGPA-to-percentage formula. See the official one for CBSE, VTU, Anna University, AKTU, JNTU, DU and MAKAUT, with the source for each.
CGPA · Students
· 4 min read
Exam Age Limits Explained: What “Age As On” Means for SSC, UPSC, Bank and Railway Exams
How Indian recruitment notices count age: the cut-off date, what an upper limit of 27 really means, OBC, SC/ST and PwBD relaxation, with 2026 examples.
Exams · Students
· 3 min read
How to Compress a Video to 10 MB or 25 MB (Without Uploading It)
Why video files are big, how size, bitrate and length are linked, and how to shrink a video to fit an email or form limit right in your browser.
Video · Compression
· 3 min read
How to Turn Any Video into a Reel or Short: Crop to 9:16, Trim and Compress
Turn a landscape video into a vertical 9:16 Reel, Short or Status: crop it, trim the best part, and keep the file small, all in your browser.
Reels · Video · Social Media
· 3 min read
MOV to MP4: How to Make iPhone Videos Play Everywhere
Why iPhone videos come as MOV and HEVC, when converting to MP4 is instant and lossless, and how to convert in your browser without uploading.
Video · iPhone · Conversion
· 6 min read
Best Image Sizes for Social Media in 2025: The Complete Cheat Sheet
Recommended image sizes for Instagram, LinkedIn, X, Facebook and TikTok, plus how to resize and crop your images to fit each platform.
Images · Social Media · Resizing
· 10 min read
How to Compress Images Without Losing Quality: The Ultimate Guide (2025)
How to make image files much smaller while keeping them sharp: lossy vs lossless compression, choosing JPG, PNG or WebP, and good quality settings.
Images · Performance · Optimization
· 3 min read
How to Compress PDF Files Online Without Losing Quality
Step-by-step guide to reducing PDF file size in your browser without exposing private documents.
PDF · Compression · Performance
· 2 min read
How to Convert a PDF to an Editable Word Document Online
Simple workflow for turning PDFs into Word files you can edit, without installing extra software.
PDF · Word · Conversion
· 2 min read
How to Debug APIs Faster With an Online JSON Formatter
Pretty-print, inspect, and validate JSON responses in your browser to speed up backend and frontend debugging.
Developers · JSON · APIs
· 2 min read
How to Extract Text From Images and PDFs Using Online OCR
Turn screenshots, scans, and photos into editable text with a private, browser-based OCR tool.
OCR · Images · Productivity
· 3 min read
How to Merge and Reorder PDF Pages in Your Browser
Learn how to combine PDFs and rearrange pages online without installing desktop software.
PDF · Merge · Productivity
· 2 min read
How to Password Protect a PDF Online (Without Uploading Files)
Secure your PDFs with strong passwords directly in your browser using client-side encryption.
PDF · Security · Encryption
· 1 min read
PNG vs JPG: Which Format Should You Use?
Learn when to choose PNG or JPG for UI, photos, screenshots, and product images.
Images · PNG · JPG
· 1 min read
Why WebP Is Better for Modern Websites
Understand how WebP reduces image size while keeping pages fast and visuals sharp.
WebP · Performance · Frontend