Free Online File, Unit & Size Converters
Convert files, measurement units, clothing and shoe sizes, currencies and time zones with fast, free online converters.
Unit Converter
Convert length, weight, temperature, area, volume and other common measurement units with instant results.
Size Converter
Convert height and foot length, plus men's, women's and kids' clothing and shoe sizes between US, UK and EU sizing systems.
World Clock & Time Zone Map
Check the current local time in cities around the world and explore global time zones on an interactive map.
PDF to Word
Convert PDF files to Word online for free. Files are processed securely and deleted immediately after conversion.
Word to PDF
Convert Word files to PDF online for free. Files are processed securely and deleted immediately after conversion.
Excel to PDF
Convert Excel files to PDF online for free. Files are processed securely and deleted immediately after conversion.
PDF to PowerPoint
Convert PDF files to PowerPoint online for free. Files are processed securely and deleted immediately after conversion.
PowerPoint to PDF
Convert PowerPoint files to PDF online for free. Files are processed securely and deleted immediately after conversion.
PDF to Text
Convert PDF files to Text directly in your browser with no upload, no signup and no software to install.
CSV to Excel
Convert CSV files to Excel directly in your browser with no upload, no signup and no software to install.
Excel to CSV
Convert Excel files to CSV directly in your browser with no upload, no signup and no software to install.
JSON to XML
Paste JSON data to convert it into readable XML, then copy the result for development or data exchange.
MP4 to MP3
Extract MP3 audio from a MP4 video directly in your browser. Free, no signup, and your file is never uploaded.
MP4 to WAV
Extract WAV audio from a MP4 video directly in your browser. Free, no signup, and your file is never uploaded.
M4A to MP3
Convert M4A audio to MP3 directly in your browser. Free, no signup, and your file is never uploaded.
OGG to MP3
Convert OGG audio to MP3 directly in your browser. Free, no signup, and your file is never uploaded.
AAC to MP3
Convert AAC audio to MP3 directly in your browser. Free, no signup, and your file is never uploaded.
MOV to MP3
Extract MP3 audio from a MOV video directly in your browser. Free, no signup, and your file is never uploaded.
MKV to MP3
Extract MP3 audio from a MKV video directly in your browser. Free, no signup, and your file is never uploaded.
WEBM to MP3
Extract MP3 audio from a WebM video directly in your browser. Free, no signup, and your file is never uploaded.
AVI to MP3
Extract MP3 audio from a AVI video directly in your browser. Free, no signup, and your file is never uploaded.
Extract Audio from Video
Upload a video and save its audio track directly in your browser without uploading the file to a server.
MOV to MP4
Convert MOV video to MP4 directly in your browser. Free, no signup, and your file is never uploaded.
MP4 to MOV
Convert MP4 video to MOV directly in your browser. Free, no signup, and your file is never uploaded.
AVI to MP4
Convert AVI video to MP4 directly in your browser. Free, no signup, and your file is never uploaded.
MP4 to AVI
Convert MP4 video to AVI directly in your browser. Free, no signup, and your file is never uploaded.
WEBM to MP4
Convert WebM video to MP4 directly in your browser. Free, no signup, and your file is never uploaded.
MKV to MP4
Convert MKV video to MP4 directly in your browser. Free, no signup, and your file is never uploaded.
GIF to MP4
Convert GIF video to MP4 directly in your browser. Free, no signup, and your file is never uploaded.
MP4 to GIF
Convert MP4 video to GIF directly in your browser. Free, no signup, and your file is never uploaded.
MOV to GIF
Convert MOV video to GIF directly in your browser. Free, no signup, and your file is never uploaded.
WEBM to MOV
Convert WebM video to MOV directly in your browser. Free, no signup, and your file is never uploaded.
Most conversions here run entirely in your browser: audio and video use a WebAssembly build of FFmpeg, spreadsheets (CSV/Excel) use the SheetJS library, and PDF text extraction uses pdf.js — none of those files ever leave your device. The five Office-document conversions (PDF↔Word, PDF↔PowerPoint, Excel→PDF) are the exception: they run on our server via LibreOffice, since converting between full document formats needs a real document engine, not just a browser library.
One honest gap: PDF to Excel isn't offered, because reliably turning a PDF's visual tables back into real spreadsheet cells needs specialized table-extraction technology that we don't have a free, privacy-respecting way to offer yet — we'd rather leave it out than give you a broken conversion. Unit Converter is fully offline and supports length, weight, temperature, volume and speed, while Size Converter handles height, foot length, and clothing and shoe sizes across US, UK and EU systems.
Every converter here is free with no signup and no limit on how many files you convert. For the browser-based conversions — audio, video, CSV/Excel and unit/size — nothing is ever uploaded anywhere; for the five Office-document conversions, your file is processed on the server and deleted immediately afterward, never stored or shared.