csvkit is a suite of utilities for converting to and working with CSV, the king of tabular file formats.

X Lossless Decoder (XLD) is a tool for Mac OS X that is able to decode/convert/play various 'lossless' audio files

my must have must have list of tools and utilities as a Mac and iOS developer

web tool that lets you copy strange characters to your clipboard

ack is a tool like grep, designed for programmers with large trees of heterogeneous source code

Excellent online note taking repository. Allows the storage of text images and html. Runs OCR on all uploaded images and provides search for both text and the text within the images. Native mac/windows/iPhone clients. Limited by monthly bandwidth which is exceptionally generous

Free service which allows you to anonymously upload 100MB of files to a single URL- a "drop location" Allows you to set a per-drop password and retention policy. Very useful for temporarily sharing large files across the internet. Very simple very intuitive interface. Can pay a small fee to upload even larger files.

CSS framework - "The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem. Read more."

Console is a Windows console window enhancement. Console features include: multiple tabs, text editor-like text selection, different background types, alpha and color-key transparency, configurable font, different window styles

Allows for the dynamic generation of charts through data encoded into the query string

Excellent free screen capture utility for windows

Apache JMeter is a 100% pure Java desktop application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.

lightweight, self-contained logging panel which takes the place of alert() boxes for your AJAX and DHTML applications. It is unobtrusive, easy to use, and can stay in your code through deployment.