Tinker Tools

Free Online Creator Tools

Format, crop, check, and calculate — built for content creators who value speed and privacy.

About Creator Tools

Content creation involves more than writing posts and filming videos. There are dozens of small formatting, sizing, and calculation tasks that eat into your creative time. These tools handle the repetitive parts so you can focus on the content itself.

The Instagram Line Break tool solves one of Instagram's most frustrating quirks — the app strips blank lines from captions. This tool inserts invisible zero-width space characters so your line breaks survive. The Profile Photo Cutter crops any image into a perfect circle for use as a profile picture on any platform.

For video creators, the Subtitle Length Checker helps ensure your subtitles stay within the recommended 15–20 characters per line for readability. And the YouTube Revenue Calculator estimates your potential ad earnings based on views and CPM, so you can set realistic monetization expectations.

Frequently Asked Questions

What are Creator Tools?
Creator Tools are browser-based utilities designed specifically for content creators. They help with formatting social media captions, cropping profile photos, checking subtitle lengths, and estimating YouTube ad revenue — all without leaving your browser.
Do these tools require a login or subscription?
No. Every Creator Tool is completely free with no sign-up, usage limits, or premium tiers. Open the page and start using it immediately.
Is my data processed locally?
Yes. All processing happens entirely in your browser. Your images, text, and data never leave your device. Close the tab and everything is gone.
Can I use the Profile Photo Cutter for any social platform?
Yes. The tool crops any image into a perfect circle and exports it as a transparent PNG. You can use the result as a profile photo on Instagram, Twitter/X, LinkedIn, Discord, or any other platform.
How accurate is the YouTube Revenue Calculator?
The calculator provides estimates based on the CPM (cost per mille) you enter. Actual YouTube revenue varies based on audience geography, niche, ad format, and seasonal demand. Use the results as a rough guideline, not an exact prediction.
What browsers are supported?
All modern browsers work: Chrome, Firefox, Safari, Edge, and their mobile versions. The tools use standard Web APIs available in any recent browser release.