convert.now vs Convertio

Both convert files. The difference is architectural, and it decides which one you should use for a given job.

The short answer

Convertio uploads your file to a server, converts it there, and sends the result back. convert.now runs the conversion in your browser, so the file never leaves your device. Convertio supports far more formats; convert.now is faster on ordinary files and requires no trust.

Background

What Convertio is

Convertio is a general-purpose online file converter that handles a very wide range of formats — documents, ebooks, video, audio, CAD, archives — by uploading your file to their servers and converting it there.

Comparison

convert.now vs Convertio, point by point

convert.now compared with Convertio.
Attributeconvert.nowConvertio
Where the conversion runsIn your browser, on your deviceOn Convertio's servers, after your file uploads
Does your file leave your device?No — there is no upload stepYes — the file is transmitted and stored while it is processed
Works offlineYes, after the first page loadNo
Account requiredNeverNot for basic use; usually required past the free tier
Speed on a normal fileImmediate — no upload or download round tripUpload time, queue time, then download time
Very large filesBounded by your browser's memory, typically 250-500MB per tabBounded by their infrastructure, which is far larger
Format coverageImages, PDF, spreadsheets, data, fonts, audio, archivesBroader — Convertio converts formats a browser has no codec for
Video conversionNot supportedSupported
Documents (DOCX, EPUB, CAD)Not supportedSupported
Free tier limitsNone — unlimited files, no daily capDaily conversion and file-size limits apply; check their site for current figures

Honest answer

When Convertio is the better choice

  • You need a format a browser has no codec for — video, CAD, ebooks, or most office documents.
  • Your file is large enough to exhaust a browser tab's memory, roughly half a gigabyte and up.
  • You need OCR, or any conversion that requires real server-side compute.

Honest answer

When convert.now is the better choice

  • The file is confidential — a contract, an ID scan, medical or financial records, unreleased work.
  • You are converting images, PDFs, spreadsheets, data files, fonts or audio, which is most everyday conversion.
  • You have a batch to get through and do not want to hit a daily cap.
  • You are on a slow or metered connection, where uploading is the slowest part of the job.

FAQ

Convertio vs convert.now: common questions

Convertio is an established service that uses encrypted transfer and states that it deletes uploaded files after a period. The point is not that they are untrustworthy — it is that uploading requires trusting a third party at all. If your file is confidential, the strongest guarantee is one where the file never leaves your device, because then there is nothing to delete, breach or subpoena.

Try it

The tools this page is about

Last updated

Convertiois not affiliated with convert.now. Free-tier limits and pricing change often, so this page describes each service’s model rather than quoting figures that would go stale — check Convertio’s own site for current terms.