OnLine Tools
Analysis Tools
Browserspy: http://gemal.dk/browserspy/ A decent tool, tells you about browser settings, etc.
Browser Screen Size Test http://www.anybrowser.com/ScreenSizeTest.html
Determine current color mode of your monitor http://www.visibone.com/ Shown at the bottom of the page
File Comperator http://www.difftool.de/index.php
Font identifier http://www.myfonts.com/WhatTheFont/
File Type Determination http://www.iconv.com/file.htm – Not sure how good this is; for a .rtfd file, it returns "data"
PDF Analysis http://www.iconv.com/pdfinfo.htm Shows title, author, creator, creation date, PDF version, encryption, etc.
Test your browser for how it handles JS, CSS, frames, etc. http://www.icab.de/test.html
Color Tools
Web color chart http://www.inter-linked.com/color-chart.html
Another web color chart http://www.articulates.net/color.html
Color picker/converter tool http://builder.cnet.com/webbuilding/pages/QuickReference/Color/converter.html
Color Schemer http://infohound.net/colour/ "...help you experiment with various color schemes..."
Determine current color mode of your monitor http://www.visibone.com/
Web Colors http://www.webcolors.freeserve.co.uk/ Multiple tools: 4k color picker, 65k color picker, HTML color mixer, etc.
Good color tools & reference information www.visibone.com/colorlab
Names of Colors http://www.yaelf.com/colour.shtml Click the name and the background changes to that color
Peter Piper's Palette Picker http://www.worqx.com/palette/
Daltonize a graphic http://www.vischeck.com/daltonize/runDaltonize.php
Check to see how a site appears to someone with a color deficit: http://www.vischeck.com/vischeckURL.php3
Text colorizer http://www.chami.com/tc/ Specify text, a range of colors, this generates HTML code to colorize the text
Converters & Calculators
ASCII to EBCDIC conversion http://www.iconv.com/asciiebcdic.htm
Bit and Byte Conversion Calculator http://www.beesky.com/newsite/bit_byte.htm
Calculator – Big number calculator applet http://world.std.com/~reinhold/BigNumCalc.html
Calculators and converters of many things, from astrological signs to women's clothing sizes http://www.csgnetwork.com/converters.html
Character Set Conversion http://www.iconv.com/iconv.htm
Clothing & Shoe size conversions http://www.i18nguy.com/l10n/shoes.html
CMU's File and URL Conversion Tool http://wheel.compose.cs.cmu.edu:8001/cgi-bin/browse/objweb
Convert PDF doc. to HTML with Adobe's tool: http://www.adobe.com/products/acrobat/access_simple_form.html
Date conversion - Julian/Gregorian http://aa.usno.navy.mil/data/docs/JulianDate.html
Electromagnetic Spectrum: Frequency <-> Wavelength converter http://hyperphysics.phy-astr.gsu.edu/hbase/ems1.html
EPS to PDF converter http://www.ps2pdf.com/convert/convert.htm
File size conversion table http://www.webopedia.com/quick_ref/FileSizeConversionTable.asp kb->mb-tb, etc.
Microsoft Office document converters & viewers http://www.microsoft.com/office/000/viewers.asp
Sort a file http://www.iconv.com/sort.htm
JPG compression tool http://www.chami.com/jc/
Roman Numeral-Arabic converter http://slayeroffice.com/tools/roman/
Text-ASCII converter http://slayeroffice.com/
About a dozen conversion tools – ordinary stuff like volume, velocity, length, etc. http://www.techzoom.net/convert/
International Weight Conversion Tool http://www.abesilverman.com/troyouncescale.html grams, kg, mg, ounces, pounds, troy ounces, pennyweight, carats, ticals, mommes, grains, newtons, taels, stone.
Download Time https://sdlcweb4d.sun.com/ECom/docs/download-calc.html Calculated based on file size & connection speed
Domain Names
Accredited Registrar Directory http://www.internic.net/alpha.html Numerous hosts & contact info
Check the availability of a specific name in up to 10 TLDs at once http://www.uwhois.com/cgi/domains.cgi?User=NoAds
Find all domain names with a wild card search http://www.domainsurfer.com/
Research domain name ownership http://www.networksolutions.com/cgi-bin/whois/whois
Sitename lookup http://www.bestsitefirst.com/ Give it the name of the entity, it returns the home page URL
Search for many domain names http://www.branchenbuch.ch/domains/home.asp?lng=en
Network Information Centers - for researching domain names
Military (US) Network Information Center http://www.nic.mil/
Domain Name Servers
DNS Report http://www.dnsreport.com/ Probes your DNS & returns an extensive "health report"
Check to see if your domain is blacklisted http://www.dnsstuff.com/tools/ip4r.ch?ip=
Check to see if your domain is blacklisted, check whois, route http://openrbl.org/
DNS Blacklist Tools http://spamlinks.openrbl.org/tools-dnsbl.htm
eCommerce Tools
Autoresponder http://www.aweber.com/
Generators
Anagram generators
http://wordsmith.org/anagram/index.html
http://www.brunching.com/cyborger.html
Button maker http://www.kalsey.com/tools/buttonmaker/
Favicon editor (of dubious value) http://www.favicon.co.uk/
Metatag generator tool http://www.submitcorner.com/Tools/Meta/
Soundex generation tool http://www.jewishgen.org/jos/jossound.htm
Tool to generate text from a phone number http://www.phonespell.org/
IP Addresses
Determine what IP address you currently occupy http://www.webmasterworld.com/
The Lasso folks give you the same information http://homepage.mcn.org/welcome.lasso
This tool gives you a bit more information http://whatismyipaddress.net/
A variety of information about a given IP address, domain name, or network owner http://www.senderbase.org/
Dotless IP Calculator http://www.tcp-ip.nu/cgi-bin/tcp-ip/calc.cgi Ex: http://4.152.78.168 -> http://77090472/
Many tools on one page http://www.technicalinfo.net/tools/index.html Domain Dossier, DNSReport, several more
Miscellaneous Tools
Find out what server (Apache, e.g.) a site is on http://news.netcraft.com/
Another web server interrogator http://www.daze.net/cgi-bin/tools/wsi.pl
Use the NIST time server to synch your computer ftp://time_a.timefreq.bldrdoc.gov/pub/daytime
WiFi Hotspot Locator – by zip code – http://intel.jiwire.com/
iPass Broadband finder & WiFi http://ipass.jiwire.com/
Test for an open relay http://www.ordb.org/submit/
Online code beautifier (formatter) http://www.prettyprinter.de/
User Agent String Lookup http://www.pgts.com.au/cgi-bin/psql?a007
Multi Tool Sites
Sam Spade http://www.samspade.org/ or http://www.samspade.org/t/ Whois, traceroute, reverse DNS, many more
DNS Stuff http://www.dnsstuff.com/pages/expert.htm Traceroute, reverse DNS, Ping, DNS Timing, many more.
IPv6 Tools http://www.ipv6tools.com/
Network Performance
Internet Performance (realtime indices) http://www.internettrafficreport.com/details.htm
Observe the number of links your internet session has between you and a server http://www.taygeta.com/cgi-bin/trace
Return Pathing http://coa.returnpath.net/lycos/reg_344003/
AT&T Network Conditions At-A-Glance http://ipnetwork.bgtmo.ip.att.net/pws/index.html
Internet Health Report http://scoreboard2.keynote.com/scoreboard/Main.aspx?Login=Y&Username=public&Password=public
Global Internet Traffic Report http://www.internettrafficreport.com/main.htm
Internet Health Report http://www.ihr.daze.net/
Another traceroute tool http://www.daze.net/cgi-bin/tools/nph-traceroute.pl
URL/URI Tools
URL/URI Shortening Tools
Clip URL http://clipurl.com/
Short URL http://www.shorturl.com/
Snip URL http://www.snipurl.com/
URL Organization tools – replacement for IE's Favorites and NS's Bookmarks:
http://www.furl.net/index.jsp
http://del.icio.us/ Delicious is a social bookmarks manager.