Free TikTok tools for online sellers.

Resize your photos to TikTok's 1080 × 1920 vertical format, get captions and hashtags from a frame of your video, and turn your videos into text and .srt subtitles. Write a price or a headline on a photo, see where TikTok's buttons cover your ad, preview it in a feed mockup and count its characters. All free, with no signup.

Frequently asked questions

What size should a TikTok image be?

TikTok is full-screen vertical: 1080 × 1920 pixels, a 9:16 frame. The TikTok Image Resizer fits your photo to it for photo posts, slideshows and video covers, cropping the edges evenly: keep your product near the center.

How do I write a TikTok caption for my product?

Take a screenshot of the moment that shows your product best and upload it to the TikTok Caption Generator: you get three captions in three tones and fifteen hashtags, in English, French, Spanish, German, Italian or Portuguese.

How do I add subtitles to my TikTok videos?

Drop your video in the Subtitle Generator: you get an .srt file with each line timed to the speech, ready to import into CapCut or Premiere. Many people scroll with the sound off, and captions let them follow anyway. Video to Text gives you the same words as plain text. Only the sound is uploaded, and the first 10 minutes are transcribed.

Will TikTok's buttons hide my text?

They can: the caption, the profile and the like, comment and share buttons sit over the video. The Safe Zone Checker shows where, from readings of the safe zone file TikTok gives advertisers for in-feed ads. It's an approximate guide: keep a margin, and preview your post in the app before you publish it.

Are these tools free? Are my files uploaded?

Free, with no signup. The resizer, Add Text to Image, the Safe Zone Checker, the Ad Mockup Generator and the Character Counter run in your browser: nothing is sent to us. The Caption Generator, Video to Text and the Subtitle Generator send your photo, or only your video's sound, to our servers, where it's stored temporarily then deleted automatically. Those three have an hourly limit per visitor.

Your next ad starts with a link.

  • 50 free credits
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Example perfume ad
Example sneakers ad
Example coffee ad