Hello.

Play music like it's meant to be played, at 110 BPM.

Concatenate and crossfade audio to form a very long sequence.

Podcast-generaattori.

Mirror of AFsp (Audio File Programs and Routines)

Sort, filter and export Spotify playlists

Convolution samples - Reverbs and delays and effects for days!

#radix_challenge hack for Junction 2016

Stochastic scale-based sequencing with a sampler

Reads Reascale files, outputs JavaScript. Built as a dependency of Chromon.

Subtly oscillating drone machine.

Geometry-based web audio sequencer

A cross-modulating synth sequencer toy.

Converts music to video with cover art, ready to upload to YouTube.

A bytebeat livecoding environment.

Some libre notification sounds.

Old-skool noise/sound effect generator for Windows

Chops WAV files into slices of equal count or duration

LiquidSoap script for a multi-room streaming system

A meta FM synth.

MAKE FATTO BIITOS. Sampler emulator on the web!

Stochastic sampling synthesizer from a friend's voice

A Web MIDI arpeggiator/step sequencer thing.

Ctypes PortMidi wrapper for Python

A little C# app that mutes microphones when noisy keyboards are abound.

Overwatch voice line regeneration using LSTM

Hand-transforming the Synthesis ToolKit to JavaScript.

Tools to convert and mangle Spotify/Last.fm/Youtube music playlists

A sampler.

Turns your hands into a MIDI controller.

🎶 ➡️ 🥘 ➡️ 🗑

A sima soundboard.

Synthesizer toy for Turku <3 Frontend

A tool for reading wallet.dat files

Who knows what this thing does...

Super duper simple, naive blockchain proof of concept in Node

A simple geocoder for Finnish addresses using public data

Utilities for Untappd Supporters to help them analyze their history

Retrospective personal budgeting

Download emoji from Discord guilds

Download models from the Ollama library, without Ollama

Download sticker packs from Telegram

Resource (icon) extraction tools

slack emoji downloader

Extract Apple Color emoji

Download images from Slack workspaces. (DOWNLOAD ALL THE DOGGOS)

Download wallpapers from Reddit

Lazy Slack archiver

Download & convert Finnish Meteorological Institute observation data

Scrape machine-readable data from Hartwall's Juomamaailma.fi

find paths and chains of finnish words, e.g. pala - ala - sala

A char-rnn to generate new nonsensical genre names based on everynoise data

Time-series of Fölläris

HTML indexer experiment

Extrapolate Slack member counts based on member activity data

Who knows what this thing does...

Data about Finnish pizzerias

A GitHub action to run pre-commit using uv via setup-uv and pre-commit-uv

Small wrapper around tokei to allow reading directly from a TAR archive

Fixit rule to rewrite assertions into if not X: raise AssertionError("X")

The colors from flatuicolors.com as JSON

A Befunge-like esolang from 2005, implemented in Basic

Encodes arbitrary Python data structures into XML in a reasonably sane way.

Easily wrap a regular binary into a macOS .app bundle.

Extract original source from JavaScript sourcemaps.

A mouse/touch-driven wheel component for React.js.

JavaScript tools for converting to/from Finnish maps

Finds non-stub TypeScript @types/ packages for your package.json.

Nicen makes your code look nicer! (An omniglot pretty-printer.)

Generate dependency graphs of NPM packages

Visualize the evolution of a Git repository's languages and size

.NET parser for an example context-free grammar syntax

data: URI encode/decode tool.

A modern webpack bundle analyzer

Easier SSH into EC2 instances

Expose Django management commands in the admin

Easily publish a directory to gh-pages

A simple reimplementation of Sentry for low-traffic sites

Teensy tiny nearly-zero-runtime Webpack loader for styles

Cookiecutter template for live-reloading JS sketches

Contract-first REST APIs in Django

Summarize Node.js --trace-sync-io logs

Choice fields that don't record the actual choices lists in migrations.

Making Django internationalization a little easier

Simple tool to fill PDF forms based on FDF/XFDF/JSON

A small utility to download and combine translations

Repeat py.tests.

Figure out licenses for the current Python/NPM/Bower environment

Convert Travis.yml to GitHub Actions workflows.

Filter and reformat Amazon AWS ELB log files

Super simple TypeScript native pagination hook for React.

Show a Docker build context

Non-serious Python as YAML proof of concept

Mappings of CSS properties, keywords and colors to various languages! It's silly!

Statically analyze Django projects for common problems.

Headless Google Chrome! In a container! On a whale!

Elasticsearch introspection utility

Mapnik Docker container with Node and Python bindings

Node.js server to translate OSX touchpad data to web sockets

A statistical profiler and flamechart generator for Python

Tiny, fast data grid built on Mithril.js

Proof of concept super-fast Python dependency locker

A programming language in all emojis

A small wrapper for parts of FreeType for Python.

A greenfield JSON parser for C#

Perfnetto wraps the Perfetto tracing SDK to make it possible to trace Python code.

CalVer versioning scheme for Hatch

TypeScript utilities

A partial reimplementation of pre-commit in Rust

Install wheels from your local pip HTTP cache

introspect your Pylint configuration and figure out what Ruff rules to enable or disable

Moves Docker images

Slice and dice your Ruff reports

Proxies UNIX socket requests

ruff-usage-aggregate

Tools for working with GitHub Actions

Convert setup.cfg, etc. to pyproject.toml files

A small React component to turn any SVG path into a slider.

A very minimal single-file Python client for Sentry.

Apple Notes database parser

Tool for refactoring state in TypeScript

Stack files into a container image

An äggregator

Bits and pieces for non-production performance observation, logging and optimization.

Minimal type-safe globalesque state for React

setup.py to setup.cfg converter

Tools to play with GitHub organizations, projects, and issues.

Generate a succinct diff between two archive files.

simple PyPI pull-through proxy

My React + TypeScript template for Vite

A mapping function finder

Interactive rmi for docker

Experiments with fast low-memory XML parsing in Python

Python codemods

Toy VM and assembler (2008)

Who knows what this thing does...

Stream data from Nordnet's semipublic API

A silly Flash game I made in 2004.

Find out which line strings are close to a number of points

A word finder.

EvoTD, my contribution to Ludum Dare 24 (2012)

(lausutaan kiipeli) An OCR hack.

A game I made inspired by Desktop Dungeons back in 2010. Ported from a private Hg repository, so the quality's not the best.

Sanamanuli on pieni kissaeläin joka auttaa sinua pelaamaan Sanulia.

Vastasanuli pelaa Sanuli-peliä.

Define polygons (like imagemaps of yore) on an image

Resolution helper for e.g. Stable Diffusion

Generates speaker grille patterns.

Generates an STL mesh of the globe, with height data.

I used this to 3D print the whole world.

Gradient designer with code generation.

Automatic as-perfect-as-possible GIF loop maker

Composite *.tif image sequences from several directories into a single PNG image sequence.

Automatically generates high-quality motion-interpolated 120 FPS loops from low-FPS GIFs

A bookmarklet to set any site in a terrible version of Papyrus

Real-time editor for SVG paths

Generate "raster dot" SVGs from images

Render BDF pixel fonts in JavaScript

Points along an ellipse, deflected like particles

Watercolour generator

A tiny Python script for making high-quality GIFs out of videos.

"Circuit" image generator I once wrote for a friend.

Laser graffiti (L.A.S.E.R. Tag) software.

Built out of frustration with the architecture and performance of the GRL's software.

Includes support for single-touch TUIO input in addition to built-in OpenCV blob tracking.

HTML5 Canvas glitch effect generator

Kinetic triangles in SVG

Stack-based image processing toy language

Full screen JPEG glitch

JavaScript island map generator (circa 2013)

An organic-looking space-filling algorithm

Canvas trails/drawing hack.

Pretty particle chamber simulation (Windows)

Python2/Allegro bindings (circa 2005, unmaintained)

Procedural SVG generator

Break polygons

Dynamic kinetic typography video for Childish Gambino's Put It In My Video

Graffiti Research Labs' LASER Tag, with updates

An old C#/.NET/WinForms node-based graphics processor.

Pseudo-genetic algorithm to recreate images using blurry SVGs

Quick and dirty Streamlit UI for Latent Consistency Models

Generate a frame-blended animation from a set of images

Explorations into the style of the CDE (Common Desktop Environment).

We used to have an HP-UX workstation with CDE at home.

A graphics hack based on the Minsky circle algorithm

Named colors from the WiZ Connected Android app.

Detects the scale factor of an upscaled pixel art image and scales it down for you

Find all the silcrows.

Scrapes machine-readable energy consumption data from energiaonline.fi

Hass.io addon for Ruuvitag Weather Stations

Serves your Ruuvitag Weather Station data over HTTP.

Tiny HTTP IoT data logger

Fancy light schemes for your home

An asyncio-native library for requesting data from a Ruuvi Gateway.

Parser for Sensirion BLE devices.

A very minimal SAML 2.0 SP implementation for modern Python versions.

A C library for Pimoroni's Display-O-Tron 3000

Object-oriented API for generating SVG path strings

Mini-library for gradient interpolation

Fast local SQLite-backed key-value storage for Python

Brownian motion generation code from torchsde version 0.2.5 as a standalone package

Some asyncio helpers. Not as bleak as it sounds.

Simpler SOAP for Python.

RSS/Atom/... feed combinator

A very small HTTP dice daemon

Read PDFs out loud via macOS say

Minimal macOS keylogger

Chrome extension for Turku public transit (Föli)

Topic-augmenting bot for Slack

What if you could only see just a little bit of the web?

A bookmarklet I made for a friend who was working with visually impaired people, with the idea that you could show how hard it is to navigate the Internet if you can only see a tiny bit of each page.

:ship: Finnish archipelago trip planner

Compare company names to Pokémon names.

Tools for interacting with XANES X1 programmable LED bicycle taillights

beta.eat.fi data visualizer (proof of concept that it doesn't have to be slow)

Declarative budgeting

Console color experiment, 2015

Formats Nmap XML output into human-readable (Markdown) form.

An old Flash tech demo.

Python extension wrapping strpbrk() for ultimate performance

Proof of concept to show how webpack-bundled plugins can be linked dynamically together

Demystifying Webpack – presentation & code

Webpack2 multiple entrypoint CSS extraction example for Koodiklinikka

Decodes some CSD files

Tool for audio extraction from a car game with an Italian plumber

Tools for manipulating Cycling'74 Max/MSP files

Download & repackage binaries

Generates calendars as SVGs.

Markov chain text generator.

Hours/minutes converter

D'Hondt tally voting system for KCS

Extract QR codes from a Google Authenticator database file

Quickly visualize a GeoJSON file

Hackery bill splitting

Easing function generator and visualizer

Yet another DynIP updater

Goodifying terminals for SSH!

Unicode map on the command line!

Electron-based Mixcloud.com client

Data-to-Data transformer tool

A fork of Tom7's ttf-embed

Extract "Now playing" from Winamp/Foobar2000 into text files and/or images.

Built for OBS-Studio, but could be useful for other uses.

Tiny Colorful Dots - a simple, small, fast light color picker

A fast file duplicate finder in C#

Some extension commands for git

A little desktop calculator (or Lua interpreter) for C#.

A bridge between Everything and Find and Run Robot.

Fast Duplicate Finder

Mutate text á la "All work and no play..."

Realtime templating tool

S3 duplicate object detector & deletor

Reddit downloader/video link detector

Utilities for distilling data from the Unicode CLDR

An Unicode map in the browser!

Remote system session manager for Windows

Incomplete yet functional fast file launcher (like Launchy) for Windows

Once upon a time I wrote a file sharing program for LAN networks during a LAN party. The timestamps reflect this.

Proof of concept for a calendar wheel like PlanDisc

Join TSV data onto GeoJSON features

Small webapp to upload images, show them.

Dockerfile + Python start script to configure an openconnect + tunsocks SOCKS proxy.

Honkshoo reads, converts and visualizes data from CPAP machines.

Tool to download models from Huggingface Hub and convert them to GGML for llama.cpp

Solar time map

A bill processor

Taasko se netti on nurin?

Generates waves over SVG paths.

Inventor-izes AWS resources for e.g. SOC2 compliance use.

Aesthetic word shuffler/wrapper

Tracks storage device prices in Finnish web stores.

Snapshot pages with Playwright

Fun with Unicode!

File manipulation DSL

Extracts files from Chrome/Chromium/Electron cache.

A list of Finnish words and names, automagically generated from online data.

A NES emulator that corrupts ROMs

Makes your face look more intense.

yhdyssanalogia-digitaalimuunnin

Infinite distraction, powered by /r/youtubehaiku

A name generator