OKfmt

Online-Convert vs OKfmt: Ads and Feature Comparison Guide

This article compares the limits, ads and feature differences between the free tier of Online-Convert and OKfmt, and introduces OKfmt's features including support for 5 types of subtitle format conversion.

Güncellenme: 2026-08-11

Current usage limits of Online-Convert free tier

The free tier of Online-Convert imposes a daily limit on the number of conversions. The specific quota is subject to the current official announcement on its website, and only conversion requests that meet the quota requirement are processed.

Online-Convert has a high density of ads across all site pages. Ads are inserted into multiple stages of the conversion workflow, and some ad blocks are placed close to functional buttons.

Core service comparison

Both tools provide online format conversion services via browsers, but there are multiple differences in core processing logic. The organized comparison content is shown below.

OKfmt has no page ads at all, all functions are open to all users, no daily conversion limit is set, and batch conversion supports processing up to 30 files at the same time.

Comparison itemOnline-Convert free tierOKfmt
Page adsMultiple ads presentNo ads at all
Batch conversionSubject to current official website announcementSupports batch processing of up to 30 files
Subtitle format conversionDoes not cover this categorySupports SRT/VTT/ASS/SBV/LRC

Parameter setting instructions for image conversion

OKfmt provides two clear options for image conversion: preserve EXIF and remove EXIF. Users can independently select the corresponding setting according to their usage requirements, and the parameter options are clear and verifiable.

OKfmt's image resizing function allows users to enter specific pixel values. The adjustment rules are open and transparent, users can directly confirm the output parameters after adjustment, and there are no hidden default compression rules.

Privacy policy comparison

Online-Convert states in its privacy policy that it collects user usage data for service optimization and ad delivery. The storage period is subject to the content published on its official website.

All format conversion operations on OKfmt are completed in the user's local browser. Files are never uploaded to OKfmt's servers, the tool does not store users' converted files, nor does it collect file-related information.

SSS

What subtitle formats does OKfmt support for conversion?

OKfmt supports bidirectional conversion between 5 common subtitle formats: SRT, VTT, ASS, SBV and LRC. This functional category is not covered by Online-Convert.

How to download files after batch conversion on OKfmt?

After batch conversion of 30 files is completed, OKfmt will package them into a ZIP archive in the user's local browser. Users only need to download once to get all files.

Does Online-Convert free tier have a clear conversion limit?

The specific quota is subject to the current official announcement on Online-Convert's website. According to the official announcement, the free tier does have a daily conversion limit.