All Online Tools
Browse the complete Uptime Fixer collection. Every card links directly to a focused tool page with its interface, usage guidance, limitations and related utilities.
Website Migration URL Validator
Check old and new URL pairs for status, redirect destination and migration mismatches.
Website Ping Test
Measure DNS and secure HTTP response latency.
Website Screenshot Generator
Create desktop or mobile website screenshot previews.
Website Speed Test
Analyze page loading speed and response time.
Website Technology Detector
Detect frameworks, analytics, CDN and common site technologies.
Website Traffic Calculator
Estimate organic visits, traffic growth, pageviews and ad revenue from your own keyword and analytics inputs without an API.
Website Uptime Checker
Check if any website is online or down instantly.
WebVTT Validator
Check WEBVTT headers, cue timestamps, sequence order and common formatting problems.
WhatsApp Link Generator
Create a click-to-chat WhatsApp link with a prepared message.
WHOIS / RDAP Lookup
Look up public domain registration data using RDAP.
Word Counter
Count words, characters, paragraphs and more.
Word to PDF Converter
Convert DOCX or text documents into a clean PDF.
Working Days Calculator
Count weekdays between two dates with optional excluded holiday dates.
XML Sitemap Comparison Tool
Compare two public XML sitemaps to find added, removed and unchanged URL entries.
XML Sitemap Generator
Generate a simple XML sitemap from your URLs.
XML Sitemap URL Analyzer
Fetch an XML sitemap or sitemap index and count its declared page locations.
XML Sitemap Validator
Validate sitemap XML, URL limits and public URL entries.
YouTube Thumbnail Size Fixer
Resize any image to YouTube thumbnail size 1280×720.
ZIP / TAR Archive Converter
Convert between ZIP and uncompressed TAR archives locally.
ZIP File Creator
Compress multiple files into a ZIP archive in your browser.
ZIP File Extractor
Inspect and securely extract selected ZIP contents.