A Comparison Guide for OKfmt as an Alternative to Convertio Free Users
This article compares the limitations of Convertio's free tier with the differences of OKfmt. OKfmt supports single-file conversion up to 50MB, batch processing of up to 30 files, and is ad-free with no registration required.
Diperbarui 2026-08-11
Current Usage Limitations of Convertio Free Tier
The maximum single-file size limit and daily conversion limit for Convertio's free tier are subject to the latest publication on Convertio's official website. Most users who encounter these restrictions need to find alternative online conversion tools.
The pages of Convertio's free tier include display ads that interfere with user operation workflows, so many users require an ad-free online conversion tool to complete their tasks.
Differences in OKfmt Basic Usage Rules
OKfmt supports single-file conversion for uploaded files up to 50MB, and supports batch upload processing for up to 30 files. All conversion functions can be used without user account registration.
The entire OKfmt site has no display ads in its interface. Users can directly select the required conversion function to complete the file processing workflow, without interference from ad content.
Format Coverage Comparison
Both tools support conversion for common document, image, audio and video formats, meeting the basic format conversion needs of most users.
OKfmt additionally provides bidirectional conversion between five subtitle formats: SRT, VTT, ASS, SBV and LRC, while Convertio does not cover this niche format conversion scenario.
| Feature Type | Convertio Free Tier | OKfmt |
|---|---|---|
| Common document/image/audio/video conversion | Supported | Supported |
| SRT/VTT/ASS/SBV/LRC subtitle conversion between formats | Not covered | Supported |
Privacy Policy Comparison
Convertio's privacy policy states that user-uploaded files are retained on its servers for a period of time, and the specific retention period is subject to the latest publication on Convertio's official website.
OKfmt immediately deletes the source files uploaded by users after conversion is completed, and also deletes the output files generated by the conversion. No files are stored on OKfmt's servers.
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Does OKfmt retain source files after subtitle conversion?
OKfmt immediately deletes both source files and output files after conversion is complete. Source files are only temporarily stored in browser cache during the conversion process, and are never saved to servers at any point.
What are the specific limitations of Convertio free tier?
The maximum single-file size limit and daily conversion limit for Convertio's free tier are subject to the latest publication on Convertio's official website. These limitations may change as the service is adjusted, so you can visit the official website to view the latest information.
Does OKfmt support batch file conversion?
OKfmt supports batch conversion, and can process up to 30 files in a single batch. Batch conversion does not require account registration, and is available as long as each file meets the 50MB size limit.