Free online tools
Browse every category, or search for the tool you need.
All tools
Showing 541–560 of 580 tools
Vector Projection Calculator
Find the vector projection of the first 3D vector onto the second.
Open tool
Velocity Calculator
Average velocity = displacement / elapsed time.
Open tool
Video thumbnail generator
A PNG frame at the requested time. Seek a browser-decodable local video and draw its frame onto a canvas.
Open tool
Voltage Converter
Convert a quantity using the listed fixed unit factors.
Open tool
Voltage Divider Calculator
Find unloaded divider output as Vin R2/(R1 + R2).
Open tool
Volume Converter
Multiply the input by the source unit factor and divide by the destination factor.
Open tool
Volumetric Flow Rate Converter
Convert a quantity using the listed fixed unit factors.
Open tool
VTT to SRT Converter
Convert WebVTT cue timings and text into numbered SRT subtitles.
Open tool
VTT to TXT Converter
Extract subtitle text from a WebVTT file without timestamps or cue markup.
Open tool
WAV To MP3 Converter
An MP3 encoded at the selected bitrate. Decode a WAV, resample to 44.1 kHz and encode its mono or stereo samples with LAME.
Open tool
Wave Period Calculator
Find a periodic wave period as reciprocal frequency.
Open tool
Wavelength Calculator
Wavelength in metres = wave speed / frequency.
Open tool
Wavenumber Calculator
Find angular wavenumber as 2π divided by wavelength.
Open tool
Wavenumber Converter
Convert wavenumber between listed units.
Open tool
WebP to ICO Converter
Convert a WebP image into a downloadable multi-size ICO file.
Open tool
WEBP To JPG Converter
Decode the selected WebP image and encode a JPEG file at the same pixel dimensions.
Open tool
WEBP To PNG Converter
Decode the selected WebP image and encode a PNG file at the same pixel dimensions.
Open tool
Week Number Calculator
Calculate a date's ISO 8601 week number, week-year, and weekday.
Open tool
Weight Converter
Multiply the input by the source unit factor and divide by the destination factor.
Open tool
Weighted Grade Calculator
Calculate a weighted grade from scores, points possible, and weights for multiple assignments.
Open toolNo matching tools
Try a different search, clear it, or choose another category.