Tool Guides

How-to guides for our free online tools — get the most out of formatters, generators, checkers and converters.

Converting a Unix timestamp to a date in JavaScript: a glowing 10-digit timestamp flows into a formatted date panel beside the code new Date(timestamp * 1000)

2026-08-17

How to Convert a Unix Timestamp to a Date in JavaScript

Convert a Unix timestamp to a date in JavaScript with new Date(timestamp * 1000). The seconds-vs-milliseconds rule, time zone formatting and common fixes.

A neon digital display reading 1970-01-01 above a row of zeros with an hourglass, representing the Unix epoch zero point — why Unix time starts in 1970

2026-08-09

Why Does Unix Time Start on January 1, 1970?

Why does Unix time start in 1970? The real reason Bell Labs chose the 1970 epoch — and why counting seconds from a fixed zero point keeps time simple.

A calculator with the EMI loan formula, a reducing-balance graph showing principal falling, and monthly instalment calendars — how is EMI calculated

2026-08-03

How Is EMI Calculated? Formula and Examples Explained

How is EMI calculated? Learn the exact loan EMI formula, see a step-by-step worked example, and understand why a longer tenure means far more total interest.

Browser address bar showing the text 'cyber code' being URL-encoded into 'cyber%20code', with percent symbols floating around — what is URL encoding and %20

2026-07-26

What Is URL Encoding? %20 and Percent-Encoding Explained

Ever seen %20 in a link? That's URL encoding. Learn why spaces become %20, which characters must be encoded, and how to encode a URL safely — with examples.

Converter interface showing a contacts CSV table transforming into JSON objects with two-way arrows — how to convert CSV to JSON and back

2026-07-18

How to Convert CSV to JSON (and Back) Without Coding

Convert CSV to JSON — or JSON back to CSV — in seconds, no coding or uploads. Handle headers, delimiters, nested data and Excel quirks the right way.

Writing app showing live word and character counts beside essay, tweet and meta description limit gauges — word count limits for every platform

2026-07-16

How to Count Words for Essays, Tweets and Meta Descriptions

Essays count words, X counts characters, Google measures pixels. The real word and character limits for 2026 — and how to hit them on the first try.

Code editor showing a config.json file with a highlighted syntax error on line 38 and a fix suggesting a missing comma — how to fix invalid JSON errors

2026-07-16

How to Fix "Invalid JSON" Errors: 7 Common Causes and Fixes

Fix "invalid JSON" fast: the 7 most common syntax mistakes — trailing commas, single quotes, unquoted keys — and how to find the broken line in seconds.

Retro green terminal displaying a Unix timestamp counter with epoch 01/01/1970 and binary time concepts — Unix timestamp explained

2026-07-07

What Is a Unix Timestamp? Epoch Time Explained in Plain English

A Unix timestamp is the number of seconds elapsed since 1 January 1970 (UTC). Learn why computers count time this way, how to convert timestamps to real dates, and what the Year 2038 problem is.

Technical SEO dashboard showing traffic, impressions, keyword rankings and Core Web Vitals metrics — free SEO tools for bloggers

2026-07-05

10 Free SEO Tools Every Blogger Should Use in 2026

The 10 free SEO tools that cover 90% of a blogger's daily needs — meta tags, snippet previews, schema markup, keyword density and more, all running in your browser.

Search engine results page showing title tags, meta descriptions and star ratings — writing meta titles that earn clicks

2026-06-30

How to Write Meta Titles and Descriptions That Get Clicks

Templates, character limits and the psychology behind search snippets that earn clicks — plus why Google rewrites 60% of titles and how to stop it rewriting yours.

3.5 MB JPEG image passing through a compressor into a 180 KB WebP file — web image compression keeps clarity while shedding weight

2026-06-25

How to Compress Images for the Web Without Losing Quality

Images are 50%+ of most pages' weight. Learn the resize-then-compress workflow, the right quality setting (hint: 80%), and when to convert to WebP — all with free browser tools.

Search engine crawler robot reading a robots.txt file with User-agent, Disallow and Sitemap rules — how robots.txt controls crawling

2026-06-24

Robots.txt Explained: What It Can and Cannot Do

Robots.txt controls crawling, not indexing — the #1 SEO misconception. Learn the syntax, the noindex trap, real examples, and the mistakes that deindex entire sites.

Product JSON-LD schema markup with price and aggregateRating transforming into a Google rich result with 4.8 star rating — structured data in action

2026-06-23

What Is Schema Markup? A Beginner's Guide to Rich Results

Schema markup is JSON your pages carry so Google can show stars, FAQs and prices in search results — and AI engines can cite you. Setup guide with the 5 schemas that matter.