PAFCalc (Planted Aquarium Fertilizers Calculator) for Android is a useful utility that helps in calculations related to DIY fertilizers for planted aquariums. It has been completely written with the Android developer studio, which should ensure portability to tablets and smartphones. The app doesn't access any external functions on your device.
Canumb aims to crunch data on various forms and turn them into something meaningful. A variety of inputs are currently supported, such as different number base conversions (decimal to hexadecimal, binary to hexadecimal, octal to decimal, etc.) and various encoded formats (a base64 encoder decoder and a URI encoder decoder). It's built to allow for extension when the future demands other input formats be crunched.
PHPDevel Link Checker is a PHP script to check Web sites for broken links, invalid URLs, missing MIME, charset, titles, descriptions, canonical URLs, and more. The script checks for errors in HTML files, CSS files, robots.txt files, sitemaps, and HTTP headers of all files. It is suitable for checking large Web sites of up to several million URLs. Crawling speed is up to 10-15 URLs/second on a single-core CPU.
Memory BoostUp is a RAM optimizer for OS X. Mac OS is very competent at managing your system memory, but manually freeing and purging memory can be beneficial to performance in some instances. Running manual memory boosts can be helpful prior to launching memory intensive applications such as graphic design packages, games, and emulators.
WinTariff is a program that collects and processes information about telephone calls. It receives data from an office PBX about the date/time, duration, and dialled number of phone calls, then calculates the cost of the call and determines the direction. Various reports about all calls during the month, calls to a certain internal subscriber, etc. can be generated. A data collection module is available for Linux/FreeBSD.
validator.py is a tool for ensuring that data conforms to certain sets of rules, called validations. A validation is essentially a schema for a dictionary, containing a list of rules for each key/value pair in the dictionary you want to validate. This is intended to fill a similar use case to form validations in WTForms or Rails, but for general sources of data, not just Web forms.