15 tools + 1 guide
Free Instagram tools
Every Grow Mate tool in one place — for deciding what to post, writing it, formatting it, sizing it and measuring how it performs.
Instagram content creation tools
7 toolsDecide what to post and write it: ideas, captions, hashtags, Reels hooks, carousels, bios and repurposed content.
Instagram post idea generator
Type your niche and get post and Reel ideas that are working in that niche right now — with the format to use and the audio to pair with them.
Open toolInstagram caption generator
Give it a topic and your niche, and get three hook options, a scannable caption and a clear call to action — written by AI in seconds.
Open toolInstagram hashtag generator
Instagram allows 5 hashtags per post. Enter your niche, get a layered pool of broad, niche and micro tags, and pick the 5 that fit your post.
Open toolInstagram Reels hook generator
Get Reel ideas built hook-first: an opening line that stops the scroll, a scene concept, and the audio style to pair with it — written by AI for your niche.
Open toolInstagram carousel maker
Turn any topic into an 8–10 slide carousel outline — hook slide, value slides and CTA — then download ready-to-post 1080 × 1440 slides.
Open toolInstagram bio generator
Get three bio options under 150 characters that say who you help and why to follow — written by AI for your exact niche.
Open toolInstagram content repurposer
Paste a blog post, tweet, newsletter or YouTube description and get it rewritten as an Instagram post with the best format and up to 5 hashtags.
Open toolInstagram text formatting tools
4 toolsGet text onto Instagram exactly as you meant it: spacing, character limits, styled fonts and usernames.
Instagram caption spacer & line break tool
Keep your line breaks and blank lines when pasting captions into Instagram. Free, instant, and 100% in your browser — nothing is uploaded.
Open toolInstagram caption & bio character counter
Live character, word, line and hashtag counts for your Instagram caption or bio — with meters for the 2,200-character caption limit and 150-character bio limit.
Open toolInstagram font generator
Type once and copy your text in 14 Unicode styles — bold, italic, cursive script, small caps — ready to paste into your Instagram bio, captions and comments.
Open toolInstagram username generator
Ten short, readable Instagram handle ideas in clean, dotted and underscored styles — brainstormed around your name and keywords.
Open toolInstagram image sizing tools
2 toolsSize images for the 3:4 profile grid and the 9:16 Reels frame, in your browser.
Instagram grid splitter
Cut any image into a seamless 3-column Instagram grid sized for the 3:4 profile layout, preview it, and download every tile — all in your browser, nothing uploaded.
Open toolInstagram Reels cover size & resizer
Resize any image to a pixel-perfect 1080 × 1920 Reels cover — fill or fit — with the 3:4 profile-grid crop marked so nothing important gets cut.
Open toolInstagram analytics calculators
2 toolsMeasure how your posts perform and what that performance is worth to brands.
Instagram engagement rate calculator
Enter your followers and average likes and comments to get your engagement rate instantly — add reach for the by-reach rate too.
Open toolInstagram money calculator
Estimate your sponsored-post rate from your followers, engagement rate and niche — broken down by feed post, Reel, carousel and Story.
Open toolInstagram guides
1 pageStraight answers to questions where the search results are full of scams.
Which Instagram tool do you need?
Start from the job you're trying to get done.
| If you want to… | Use |
|---|---|
| Decide what to post this week | Instagram post idea generator |
| Write a caption for a post | Instagram caption generator |
| Choose 5 hashtags | Instagram hashtag generator |
| Open a Reel with a strong first line | Instagram Reels hook generator |
| Turn a topic into carousel slides | Instagram carousel maker |
| Rewrite your bio | Instagram bio generator |
| Keep line breaks in a caption | Instagram caption spacer & line break tool |
| Check a caption or bio fits the limit | Instagram caption & bio character counter |
| Size a Reels cover for the grid | Instagram Reels cover size & resizer |
| Work out your engagement rate | Instagram engagement rate calculator |
| Price a sponsored post | Instagram money calculator |
Frequently asked questions
Are Grow Mate's Instagram tools free?
Yes. Every tool on this page is free to use with no sign-up. The Grow Mate dashboard, which saves your niche, checklist and planner, needs a free Google sign-in.
Do I need to connect my Instagram account?
No. None of these tools connect to Instagram or ask for your Instagram password. The formatting, sizing and calculator tools run entirely in your browser.
Which tools use AI?
The caption generator, Reels hook generator, bio generator, carousel maker, content repurposer and username generator write their output with AI. The post idea and hashtag generators draw on Grow Mate's curated feed, and the rest are calculators and formatters.