Free Online Tools for
Everyday Tasks
Compress images, convert files, calculate numbers, generate QR codes and more — fast, free and 100% client-side.
Popular Online Utilities
Image Compressor
Reduce JPG, PNG, and WebP file size without losing visual quality.
QR Code Generator
Turn any text, URL or Wi-Fi credential into a downloadable QR code.
PDF Merger
Combine multiple PDF files into a single document.
Random Number Generator
Generate random numbers in any range, with or without repeats.
CIDR Calculator
Network address, broadcast, and usable host range.
Connection String Builder
Generate URIs for Postgres, MySQL, MongoDB and Redis.
chmod Calculator
Toggle Linux file permissions to get the numeric value.
EMI Calculator
Monthly loan EMI, total interest and total payment.
SLA Calculator
Allowed downtime for any SLA target.
JSON Formatter
Format, validate and minify JSON.
Browse by Category
Find the exact tool you need, organized into functional categories.
Image Tools
Compress, resize, convert format, and optimize images directly in your browser.
4 Tools AvailablePDF Tools
Merge, edit and convert PDF documents quickly and securely.
3 Tools AvailableText Tools
Word counter, case converter, line deduplication and text cleaning.
3 Tools AvailableCalculator Tools
Age, EMI, financial percentages, GST and product discounts.
2 Tools AvailableDeveloper Tools
Format JSON, encode/decode Base64, generate UUIDs and hashes.
5 Tools AvailableAI & Creator Tools
Generate YouTube titles, Instagram captions and hashtag sets.
3 Tools AvailableUtility Tools
Generate QR codes, strong passwords and random numbers.
3 Tools AvailableFinance & Investment
EMI, SIP, CAGR, GST, gratuity and salary calculators.
21 Tools AvailableCloud & Infrastructure
Cloud, Kubernetes, networking and Linux calculators.
6 Tools AvailableReliability & SRE
SLA, uptime, downtime cost, SLO and error budget calculators.
6 Tools AvailableDate & Time
Date difference, timestamp, timezone converter, age calculator.
4 Tools AvailableCareer Tools
Free ATS resume checker with scoring and keyword match.
1 Tool AvailableWhy Nzynxo?
Every tool on this site runs entirely in your browser — nothing you type is ever uploaded to a server. No account, no signup, no tracking of the values you enter. Just fast, focused tools that do one thing well.