Free tools

Calculators

• Instagram engagement rate calculator
  Followers, average likes and comments in; engagement rate out. Can fill itself in from a public account.
• TikTok engagement rate calculator
  Per-view and per-follower rates for a single video.
• Instagram and TikTok money calculator
  A rough sponsored-post rate from followers or average views, with every assumption shown.

Profile and caption tools

• Bio generator
  Bio ideas that fit Instagram’s 150 characters or TikTok’s 80, in four voices.
• Font generator
  Your text in 19 copy-and-paste Unicode styles, with notes on where styling hurts.
• Caption line break generator
  Keeps the blank lines in a caption and counts characters, hashtags and mentions.
• Profile picture viewer
  Any public Instagram or TikTok profile photo at full size, from a username.

Why a store gives tools away

Because the honest first question before buying anything is “how does my account look right now?” These tools answer it, and they’re just as useful if you never order a thing. Most of them run entirely in your browser. The two that look accounts up (the engagement calculator’s fill-in and the picture viewer) send only the username you type to a data provider, as the privacy policy explains.

A sensible order if you’re setting up a new profile: check your photo in the picture viewer, draft a bio, style one word at most, then write captions with proper spacing. Once you’ve posted for a few weeks, run the engagement calculators to see what’s landing. For what the numbers mean, read engagement rate explained and how the Instagram and TikTok algorithms work, or browse all the guides.