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Tools for Amazon Sellers

FBA profit, listings, and keyword tools — free

6 free toolsNo signup required

✍️ Text & Data Tools

6 tools
Text

Word Counter & Character Counter

Count words, characters, sentences, and paragraphs in your text instantly. Get reading time estimation and keyword density analysis.

InstantNo Upload
Text

Case Converter

Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, CONSTANT_CASE, and more with one click.

InstantNo Upload
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Whitespace Remover

Remove extra whitespace, leading/trailing spaces, blank lines, and tabs from your text. Clean up messy text instantly.

InstantNo Upload
Text

Duplicate Line Remover

Remove duplicate lines from your text instantly. Keep unique lines, trim whitespace, and sort results with one click.

InstantNo Upload
Text

Text to Slug Generator

Convert any text to a URL-friendly slug. Removes special characters, replaces spaces with hyphens, and converts to lowercase.

InstantNo Upload
Developer

JSON Formatter & Validator

Format, beautify, minify, and validate JSON data. Syntax highlighting with error detection and tree view.

InstantNo Upload

Tools That Save Amazon Sellers Hours Per Week

Writing listings and calculating margins shouldn't take all day. These tools give you optimized titles, benefit-driven bullets, and accurate profit calculations in minutes.

Frequently Asked Questions

Does the FBA calculator include all Amazon fees?
Yes. It includes referral fees (by category), FBA fulfillment fees (by size tier), and monthly storage fees. It calculates net profit, ROI, margin %, and breakeven price.
Can I use the listing generator for multiple marketplaces (CA, UK, DE)?
Yes. The AI prompt you generate can be used in any marketplace. Add 'for the UK/CA/DE marketplace' when you open it in ChatGPT or Claude.
Is there a limit to how many listings I can generate?
No limits. Generate as many listings as you need — completely free.
Are the listing tools compliant with Amazon's style guide?
The prompts are designed around Amazon's A9 algorithm best practices — keyword placement, character limits (200 for titles, 500 for bullets), and benefit-forward language.
Do I need an Amazon Seller account to use these tools?
No. All tools work independently — no account or API key required.

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