Tool catalog
Search and filter tools by category and tags.
Results: 36
Tags
Aim Trainer
Simple reflex and precision training.
game
Algorave Panel
Modular groovebox with sequencer and tracks.
audio • sequencer • groovebox
Area Converter
mm²/cm²/m²/km² ↔ in²/ft²/yd²/acre/ha.
metrics • unit-converter • area
Audio Trimmer
Trim audio and export WAV.
audio • trim • wav
Brain / Memory
Memory games: Memory Pairs and Digit Span.
game • memory
CSV ↔ JSON
Convert CSV and JSON.
convert • data
Data Converter
B/kB/MB/GB/TB and KiB/MiB/GiB/TiB.
metrics • unit-converter • data
Fade In / Out
Add smooth fade in/out.
audio • fade
Image Converter
PNG/JPG/WebP/AVIF/BMP — local.
image • convert
Length Converter
mm/cm/m/km ↔ inch/ft/mi.
metrics • unit-converter • length
Merge PDF
Merge multiple PDFs into one (client-side).
pdf
Minecraft Skin Editor
Edit Minecraft skins 64x64/128x128 locally in your browser (official format).
art • minecraft • skins • pixel-art
Normalize / Volume
Normalize volume and set gain without clipping.
audio • normalize • gain
Pixel Art Editor
Pro pixel art editor: layers, palette, export PNG/JSON.
art • pixel-art
Pixel Paint
Draw pixel art and export PNG locally.
game • pixel
Speed Converter
m/s ↔ km/h ↔ mph ↔ kt.
metrics • unit-converter • speed
Synth Panel
Simple WebAudio synth with WAV recording.
audio • synth
Temperature Converter
C ↔ F ↔ K.
metrics • unit-converter • temperature
Volume Converter
ml/l/m³ ↔ in³/ft³/gal (US).
metrics • unit-converter • volume
Weight Converter
g/kg ↔ lb/oz.
metrics • unit-converter • weight
ZIP Pack/Unpack
Pack and unpack ZIP locally.
zip • compress • archive • files
Angle Converter
° ↔ rad ↔ grad.
metrics • unit-converter • angle
Digit Span
Memorize and recall digit sequences (forward/backward).
game • memory • digits
Energy Converter
J/kJ/MJ ↔ Wh/kWh ↔ cal/kcal.
metrics • unit-converter • energy
Fuel Economy Converter
L/100km ↔ km/L ↔ MPG (US/UK).
metrics • unit-converter • fuel
GIF → Frames
Split GIF into frames and export as PNG/JPG/WebP in ZIP.
gif • image • convert • zip
Image Compress
Compress images in lossy or lossless mode.
compress • image • webp • avif
Memory Pairs
Find matching pairs and train visual memory.
game • memory • pairs
Pace Converter
min/km ↔ km/h.
metrics • unit-converter • pace
Power Converter
W/kW/MW ↔ hp.
metrics • unit-converter • power
Pressure Converter
Pa/kPa/MPa/bar/atm ↔ psi/mmHg/inHg.
metrics • unit-converter • pressure
Rotate PDF
Rotate PDF pages by 90/180/270 degrees.
pdf
Split PDF
Split PDF into pages (client-side).
pdf
TAR + Brotli
Better ratio, slower — tar.br client-side.
compress • archive • tar • brotli • files • dev
TAR + Gzip
Create tar.gz archives locally in the browser.
compress • archive • tar • gzip • files • dev
Time Converter
ms/s/min/hour/day/week/year.
metrics • unit-converter • time