Back to Blog
Nithish

Nithish

Developer & Blogger , 21K Tools
India
28 Published Posts

About Nithish

Hi, I’m Nithish. I’m one of the guys behind 21K Tools. I got tired of online tools that were slow, full of ads, paywalled or sketchy with privacy, so we built simple free ones that actually feel good to use everything runs in your browser, no account needed (maybe someday), no tracking. I write the guides here from stuff I test and use myself. Got suggestions, problems or ideas? Just email us at contact@21k.tools or fill the form at the Help Center. Follow @21ktools on X for updates.

Published Articles

Client-Side vs Cloud: Why Privacy-First Tools Feel Faster on Low-End Phones Right Now
Overview

Client-Side vs Cloud: Why Privacy-First Tools Feel Faster on Low-End Phones Right Now

Why browser tools that process data locally feel snappier on budget phones than cloud-powered alternatives. Battery drain tests, WebAssembly performance, offline wins, and what privacy-first …

Mar 16, 2026
Read More
AI-Generated Resumes vs Human-Written: Which One Actually Passes ATS in 2026?
Overview

AI-Generated Resumes vs Human-Written: Which One Actually Passes ATS in 2026?

I tested 10 real job postings with AI-generated and human-written resumes through live ATS systems in 2026. Here's what keyword stuffing actually does, which formatting …

Mar 16, 2026
Read More
Browser Calculators vs AI in 2026: Which Actually Wins for Age, Interest & Time Math?
Business

Browser Calculators vs AI in 2026: Which Actually Wins for Age, Interest & Time Math?

A deep, honest comparison of AI chatbots vs. dedicated browser calculators for age, compound interest, and time difference calculations in 2026 — testing accuracy, privacy, …

Mar 08, 2026
Read More
Why 90% of Resized Images Still Load Like Trash on Mobile in 2026
Business

Why 90% of Resized Images Still Load Like Trash on Mobile in 2026

Deep technical teardown: why resized images still kill mobile performance in 2026. Covers srcset failures, AVIF/WebP gaps, chroma subsampling, compression ringing, low-end Android gotchas, accessibility …

Mar 06, 2026
Read More
Why Browser-Based Tools Are Outperforming Native Apps for Everyday Tasks in 2026
Business

Why Browser-Based Tools Are Outperforming Native Apps for Everyday Tasks in 2026

Browser tools vs. desktop apps in 2026: real load-time benchmarks, battery drain comparisons, privacy wins, PWA offline myths busted, WebAssembly breakthroughs, and predictions for 2027 …

Mar 03, 2026
Read More
AI-Powered Workflows in 2026
Business

AI-Powered Workflows in 2026

Learn how to chain free online tools with AI in 2026 — from image generation to PDF export to QR sharing. Explore agentic workflows, real …

Mar 03, 2026
Read More