Converters
Convert units, colors, time zones or text encodings with the appropriate tool. Numeric fields and file conversion have different formats and limits; check the instructions before starting.
Tools in this category
11 tools-
12-hour to 24-hour converter
Switch between AM/PM and 24-hour time without changing the time. -
Color converter
One color in, every notation out, plus tints, shades and a WCAG contrast check. -
Image to text
Extract printed text from an image, then correct and copy it. -
M4A to MP3
Turn an M4A recording into a downloadable MP3, without uploading it. -
MP4 to MP3
Save the sound from your MP4 video as an MP3 file. -
Roman numeral converter
Convert both ways and understand every symbol. -
Subtitle converter
Convert subtitle files in either direction without uploading them. -
Text to Binary
Convert text and byte values in both directions, using ASCII or UTF-8. -
Time zone converter
One meeting, several cities: compare the local time and date. -
Unit converter
Type a value, pick two units and see the result and a table of every unit in the group. -
Voice noise cleaner
Reduce background noise in speech and compare the result before saving.
Choose a converter by the result you need. Unit conversion changes measurements; time zone conversion compares local dates and times; MP4 to MP3 extracts supported audio from a video and is not a reversible conversion. The unit converter accepts decimal commas and points and offers length, mass, temperature, area, volume, speed, duration and data size. Other tools have different input formats, controls and limits. File-processing engines may load when you start an action, so opening the page does not guarantee offline readiness. The time zone converter relies on your browser’s time zone data; choose the date to account for daylight saving rules. Check display precision and output format before copying a result. Local processing keeps source files on your device, but some tools remember settings or include values in the page URL.
Common questions
Where can I use a decimal comma?
The unit converter accepts 1,5 and 1.5 as the same numeric value. That does not apply to every converter: colors, dates, encodings and media use their own formats. Follow the instructions beside the chosen field rather than assuming every input is numeric.
Are unit-conversion results exact?
Calculations use JavaScript numbers and results are rounded according to the chosen precision. The unformatted value is useful for copying, but is not arbitrary-precision arithmetic. Check units and rounding before relying on an output for engineering or other consequential work.