100% free online tools for network engineers, sysadmins, and developers. No signup required. All tools run entirely in your browser — no data is sent to any server.
112+ free tools — no signup, runs in your browser
Home, car, personal loan EMI with amortization
NewAdd/remove GST with CGST, SGST, IGST split
Format, validate, minify JSON with tree view
Test regex patterns with live matching
Generate v4 UUIDs instantly
Compress JPG, PNG, WebP in browser
Generate QR codes for URLs, WiFi, text
HEX ↔ RGB ↔ HSL with palette generator
Professional invoices with GST & PDF
Secure passwords with custom rules
NewOWASP Top 10 vulnerability assessment
NewCreate professional resumes & download PDF
Calculate exact age in years, months, days
What is X% of Y, % change, add/subtract %
Home, car, personal loan EMI with amortization
NewAdd/remove GST with CGST, SGST, IGST split
NewMutual fund SIP returns & growth projection
NewFixed deposit maturity with compounding options
NewOld vs New regime FY 2025-26 comparison
NewCTC to in-hand salary breakdown
Format, validate, minify JSON with tree view
Test regex patterns with live matching
Generate v4 UUIDs instantly
Encode and decode URL components
Unix epoch to human-readable and back
Convert between CSV and JSON formats
NewConvert JSON arrays to CSV with download
Compare two texts side-by-side
Count words, characters, sentences, reading time
UPPER, lower, Title, camelCase, snake_case
Generate placeholder text for designs
URL-friendly slugs from any text
NewWrite, auto-save & download text
NewFlesch score & grade level analysis
NewTest your WPM with live accuracy
Compress JPG, PNG, WebP in browser
Generate QR codes for URLs, WiFi, text
HEX ↔ RGB ↔ HSL with palette generator
NewCreate all favicon sizes from one image
NewConvert SVG files to PNG with scaling
NewDownload any YouTube video thumbnail
NewRecord your screen right in the browser
Query A, MX, NS, TXT, CNAME records
Geolocation, ISP & timezone from IP
Check SSL certificate validity & details
Domain registration & expiry info
Check if ports are open on a host
Security header check with scoring
Detect phishing & suspicious URLs
Trace hops, check SPF/DKIM/DMARC
Calculate semester GPA and cumulative CGPA
NewConvert CGPA to percentage for any university
NewWhat do I need on the final to get an A?
NewAPA, MLA, Chicago, Harvard citations
NewCompare two texts for similarity
NewWords, pages & reading time for essays
NewSolve ax² + bx + c = 0 with steps & graph
NewAdd, multiply, determinant, inverse
Create wa.me links with pre-filled messages
NewPayment QR for Google Pay, PhonePe, Paytm
NewShare URLs for all social platforms
NewVerify emails with MX & disposable check
NewProduction-ready HTML email templates
NewSMS templates with variables & DLT info
NewTest WhatsApp Cloud API messages
NewTwilio, MSG91, Fast2SMS code snippets
Transfer time for Ethernet, Wi-Fi, LTE, IoT links
NewMQTT vs CoAP vs LoRaWAN vs Zigbee vs BLE & more
NewDraw network topologies with drag-and-drop
NewPublish, subscribe & generate MQTT code
NewVisualize network paths and hop latency
Network address, broadcast, usable hosts