ReAnimator
Node Based Image Effect/Filter Editor
Xido
SF2 Player for Jamming and Learning with built-in effects
Borg ER-0
Draw oscillators and envelopes.
Borg ER-1 & 2
Tone generator inspired by the Korg ER-1
Borg ER-3
Tone generator inspired by the Korg ER-1
visual effects editor
gpu-melter
Sonic Palette Fade
Blueish fading effect similar to those used in Sonic 1 & 2
Channel Mixer
4 textures into 1 Texture easily.
Text Gen: Particle Effect Texture
Text List Random Generator
Sprite Effect Modifier
Create interesting sprite effects and animations
Precision Color
Precision Color is a Color effect for the Unity Post-Post Processing Stack
GameJam Toolkit - Easy 2D effect
Screenshake, lookat 2D, screenshot utility... All you need to save some time during a gamejam !
Roman Numerals
Simple tool to provide back and forth convertion for roman numbers.
Sprite Trail
With SpriteTrail, it's easy to put a trail on any sprite you want.
Text Over Time + Hacker Typer
Easy way to display text over time.
Fun With Fireworks
Fireworks particle simulation toy! Make your own fireworks!
BARKHAUSEN
Spectral audio plugin for M series macs (sorry)
DigitD
Overdrive distortion plugin for VST2, VST3 and Audio Unit
Oru
Wavefolder distortion plug-in for VST2, VST3 and Audio Unit
Uinku
high quality foldback distortion plugin for VST2, VST3 and Audio Unit
Winkl Foldback distortion
Fold-back distortion effect for VST2, VST3 and Audio Unit
2D Ghost Trail Spawner - Unity
A highly customisable Unity tool that allows you to spawn trails from any GameObject in your 2D project.