Small, focused tools I build because I needed them myself. Free, open source, no ads.
Turns your MP3, WAV and FLAC files into Traktor stem files (.stem.mp4) with drums, bass, melody and vocals. No Python, no setup. Since version 2.0 the Turbo engine is 6 to 10 times faster on the CPU and uses your graphics card when it helps. Includes StemPlayer to preview the stems and StemTagger for title, artist and cover. New in 2.2: nine languages (English, German, Spanish, French, Portuguese, Italian, Japanese, Dutch, Polish). Installer or portable ZIP.
To StemMaker
Sets title, artist, album, genre and cover art in Traktor stem files (.stem.mp4) and MP3s, for a whole folder at once. Only the tags are rewritten: the stems, the audio and Traktor's cue points, loops and beatgrid stay untouched. A column shows which MP3s Traktor has already analysed. Portable ZIP, also included in StemMaker as an add-on.
To StemTagger
Packs finished tracks into Traktor stem files (.stem.mp4), without AI and in batches: a master plus up to four stems per song, for example from your DAW, a 5.1 DVD or another separation tool. Your own stem names and colours, tags and cover from the master, AAC or lossless ALAC. Shows which file is missing and warns when a track is shorter than the master. Portable ZIP with StemPlayer.
To StemPacker
Excel VBA tool for quickly pinging devices in industrial networks, e.g. Siemens CPUs, HMIs and PLCs over Profinet. Three scan modes, clean cancel, correct IP sorting.
To GitHub
Calculates the series resistor for one or more LEDs: standard value from E12, E24 or E96, colour bands, power and recommended resistor size, with an estimate of how warm it gets. A step-by-step explanation shows the calculation with your own numbers, and a page about LEDs is built in. Single portable EXE (German interface for now).
To LedPreResistor