12 tools · no sign-in · nothing uploaded

Instagram tools that never ask for your login

Every tool on StealthGram runs inside your browser. No account connection, no password, no file upload, no server that quietly keeps a copy. Open the network tab and check — once the page has loaded, nothing else leaves your device.

No login, ever

We never ask for your Instagram username or password, and there is nowhere on this site to enter one. Any tool that wants your credentials to show you “who unfollowed you” is asking for the keys to your account.

Nothing is uploaded

Images you drop into the carousel splitter, size checker or grid planner are read by your own browser with the Canvas API. They are never transmitted, because there is no upload endpoint to transmit them to.

Works offline after load

Because the maths runs on your device, every tool keeps working if your connection drops mid-session. That is not a feature we added — it is what “no backend” actually means.

Measure & price

Numbers you can take into a brand conversation.

Write & format

Captions, bios and hashtags that behave.

Size & design

Get pixels right before you post.

Why a browser-only toolkit is the point, not a limitation

Most free Instagram tools work the same way: you paste something in, it goes to their server, the server does the work and sends an answer back. That is a perfectly ordinary way to build software, and for most things it is fine. It stops being fine the moment the thing you are pasting in is personal — your unpublished caption, your client’s campaign image, your follower numbers before you have told anyone.

StealthGram is built the other way round. There is no application server behind these tools. When you load a tool page, your browser downloads a JavaScript file and then runs it locally, in the same sandbox that runs every other page you have open. The engagement rate calculator does arithmetic on numbers that never leave the input box. The carousel splitter uses the Canvas API to slice an image that only ever exists as an object URL in your own memory. The grid planner saves your arrangement in localStorage — a store that belongs to your browser, on your machine, that we cannot read.

You do not have to take that on faith. Open your browser’s developer tools, switch to the Network tab, load any tool page, and then use it. You will see the initial page load — HTML, one stylesheet, one small script, one tool module, two font files — and then nothing. No POST requests. No beacons. No analytics pings carrying what you typed.

What we deliberately do not build

There are popular Instagram “tools” we will not make, because they cannot be made honestly:

  • Private account viewers. Every single one is a scam or a phishing page. If an account is private, the images are not served to you, and no website can change that. Tools claiming otherwise exist to harvest logins or to make you complete endless “human verification” offers.
  • Follower buying and engagement pods. Bought followers wreck the one metric brands actually check — your engagement rate — and violate Instagram’s terms. We would rather show you how to calculate the damage than sell it to you.
  • Anything that needs your password. “Who unfollowed me” trackers, auto-DM bots and scheduling tools that ask you to log in through their own form are handing your credentials to a third party. Instagram’s own Insights already tell you most of what those tools promise.
  • Downloaders for other people’s content. Saving someone else’s photos to reuse is a copyright problem, not a technical one.

We wrote a guide on how these scams actually work, including what happens to your account after you enter a password into one.

Where our numbers come from

Several tools compare your figures against benchmarks — engagement rate by follower tier, sponsored post rates by niche, active hours by audience type. Those benchmarks are published ranges from creator-marketing reporting and platform documentation, not a private dataset and not live Instagram data. We show you the exact multiplier applied at every step so you can disagree with a number and adjust it, rather than trusting a black box. Where a tool cannot know something, it says so instead of inventing a figure.

Recent guides

Analytics

What Is a Good Engagement Rate on Instagram?

Instagram engagement rate benchmarks by follower tier, the formula that produces them, a worked example you can check by hand, and the caveats nobody mentions.

7 min read