Author
Gaurav
Creator of Wrklyst
Gaurav created Wrklyst, a free collection of browser-based PDF, image, writing and developer tools.
Articles by Gaurav
Why Your Writing's Readability Score Matters (Especially for SEO)
What the Flesch Reading Ease score actually measures, what grade level to target, and why search engines reward simpler writing.
August 27, 2026
GST Calculator: How to Work Out Inclusive vs Exclusive Tax
The difference between GST-inclusive and GST-exclusive amounts, and how to calculate either direction correctly.
August 24, 2026
How to Test Your Internet Speed (and What Mbps You Actually Need)
What download, upload, and ping actually measure, and realistic Mbps targets for streaming, gaming, and video calls.
August 21, 2026
What Is My IP Address, and Why Does It Matter?
The difference between your public and private IP, what an IP address reveals about you, and when you'd actually need to check it.
August 18, 2026
Unix Timestamp Explained: How to Convert Epoch Time to a Readable Date
What a Unix timestamp actually counts, why it shows up in logs and APIs, and how to convert it to a real date.
August 15, 2026
How to Create a Strong Password You Can Actually Remember
What actually makes a password hard to crack, why length beats complexity, and how to check a password's real strength.
August 12, 2026
MD5 vs SHA-256: What Hashing Actually Does and When You Need It
The difference between hashing algorithms, why MD5 is considered broken for security, and when a checksum is still fine.
August 9, 2026
How to Test a Regular Expression Without Guessing
Building and debugging a regex against real sample text, instead of running your code over and over to see what breaks.
August 6, 2026
How to Format and Validate JSON (and Find What's Actually Broken)
Turning a wall of minified JSON into something readable, and pinpointing the exact character breaking your JSON parser.
August 3, 2026
How to Fix a Corrupted PDF File That Won't Open
Why PDFs become unreadable, what a repair tool actually does to recover them, and when a file is beyond saving.
July 31, 2026
Free Grammar Checker Online — Fix Grammar, Spelling and Passive Voice Instantly
Free online grammar and spell checker. Fix grammar errors, spelling mistakes, passive voice and weak words instantly. No signup, 100% browser-based.
July 28, 2026
Text Compare Online Free — Find Differences Between Two Texts Instantly
Free online text comparison tool. Compare two documents, find differences instantly with word, line and character level diff. No signup, 100% browser-based.
July 28, 2026
JSON Formatter Online Free — Beautify, Validate & Minify JSON Instantly
Free online JSON formatter, validator and minifier. Beautify messy JSON, validate syntax errors, convert JSON to CSV, XML and YAML. No signup, 100% browser-based.
July 28, 2026
Word Counter Online Free — Count Words, Characters, Syllables & More Instantly
Free online word counter with speaking time, syllable count, passive voice detector and social media character limits. No signup, works in browser instantly.
July 28, 2026
How to Sign a PDF Online for Free
Drawing, typing, or uploading a signature onto a PDF without paying for DocuSign or installing desktop software.
July 28, 2026
How to Add a Watermark to a PDF (CONFIDENTIAL, DRAFT, or Custom Text)
When a watermark actually protects a document, when it doesn't, and how to add one to every page in seconds.
July 25, 2026
Word to PDF: How to Convert DOCX to PDF Without Losing Fonts or Layout
Why a Word document can look different on someone else's computer, and how converting to PDF fixes that permanently.
July 22, 2026
How to Compare Two Documents and Find Every Difference
Eyeballing two versions of a text side-by-side misses changes. A diff tool highlights every added, removed, and edited line.
July 21, 2026
What Is Base64 Encoding? A Practical Explanation for Non-Cryptographers
What Base64 actually does, why it shows up in URLs, emails, and APIs everywhere — and why it is not encryption.
July 21, 2026
How to Extract Tables from a PDF into Excel
Stop retyping numbers from PDF reports. How PDF-to-Excel conversion works, when it's reliable, and how to check the result.
July 21, 2026
JPG to PDF: How to Combine Photos and Scans into One PDF
Turn a camera roll full of receipts, IDs, or homework pages into a single, ordered PDF that's easy to send and print.
July 21, 2026
How to Convert a PDF to JPG Images (Every Page or Just One)
Turn PDF pages into shareable JPG images without installing anything — and know when PNG is the better choice.
July 21, 2026
How to Password Protect a PDF (and Remove a Password You Know)
When PDF password protection actually helps, what it does and doesn't prevent, and how to add or remove one in your browser.
July 21, 2026
PDF to Word: How to Convert a PDF Without Breaking the Formatting
What actually happens when a PDF becomes a DOCX, why formatting sometimes shifts, and how to get a clean, editable result.
July 19, 2026
How to Split a PDF into Separate Pages or Extract a Range
How to pull specific pages out of a PDF or break it into individual files, without installing anything.
July 16, 2026
How to Create a QR Code for WiFi, a Link, or a Business Card
The three QR code types people actually need, how to generate each one correctly, and the design mistakes that make a QR code fail to scan.
July 12, 2026
JPG vs PNG vs WebP: Which Image Format Should You Actually Use?
A quick decision guide for picking between JPG, PNG, and WebP based on transparency, compression, and file size — and how to convert between them.
July 9, 2026
How to Compress a PDF Without Losing Quality
What PDF compression actually does under the hood, how much smaller you can realistically expect a file to get, and when to leave it alone.
July 5, 2026
How to Merge PDF Files Online for Free (No Signup, No Watermark)
A practical guide to combining PDFs online without watermarks, page limits, or handing sensitive documents to a service that keeps a copy.
July 1, 2026