Category · Utility Tools

Best free Developer Utilities Tools you can use right now

A minified JSON blob or a long SQL query comes back readable. Developer utilities also clean data, standardize field names and build QR codes.

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Aug 18, 2026 Last Updated
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Developer Utilities Tools · 12 tools

AI JSON Formatter

Developer Utilities

Format, beautify, and validate JSON online for free. Fix errors, pretty-print...

JSON Developer
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AI CSV Generator

Developer Utilities

Generate CSV files free with AI. Describe the data you need and get clean, str...

CSV Generator Data
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AI Data Cleaner

Developer Utilities

Clean data free with AI. Remove duplicates, fix errors, and standardize format...

Data Cleaner Data
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AI CSV Formatter

Developer Utilities

Free AI CSV formatter that cleans messy rows, aligns columns and fixes delimit...

CSV Formatter
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AI XML Formatter

Developer Utilities

Free AI XML formatter that beautifies, indents and validates XML so your marku...

XML Formatter
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AI YAML Formatter

Developer Utilities

Free AI YAML formatter that fixes indentation, validates syntax and beautifies...

YAML Formatter
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AI SQL Formatter

Developer Utilities

Free AI SQL formatter that indents, aligns and beautifies queries so your SQL...

SQL Formatter
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AI QR Code Utility

Developer Utilities

Free AI QR code utility to generate, customize, and read QR codes instantly. P...

QR Code Generator
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AI Barcode Utility

Developer Utilities

Free AI barcode utility to generate and decode barcodes fast. Create product a...

Barcode Generator
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AI Timestamp Utility

Developer Utilities

Free AI timestamp utility to convert, generate, and format Unix timestamps and...

Timestamp Converter
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Which formatters are here?

The everyday ones. There is an AI JSON Formatter, an AI SQL Formatter, an AI XML Formatter, an AI YAML Formatter and an AI CSV Formatter, plus an AI Data Structure Formatter for the nested shapes that fit none of those.

Can I tidy a minified JSON payload?

Yes. Paste it into the AI JSON Formatter and it comes back indented with the nesting visible, which makes a bug far easier to see. Run the AI Data Cleaner first if the payload arrived with stray characters attached.

Is there something for test data?

The AI CSV Generator builds rows to a shape you describe, which beats typing fake records by hand. The AI URL Generator does the same for links, including the query strings you want when testing how a page reads parameters.

What does the data standardizer do?

The AI Data Standardizer makes a set agree with itself. Dates end up in one format, names follow one casing rule and units stop switching halfway down the file, which is usually what breaks an import somewhere else.

Can I make a QR code here?

The AI QR Code Utility turns a link or a short piece of text into a code you can print or drop into a design. The AI Barcode Utility covers product codes when a label or a stock sheet needs one.

Does my SQL stay valid after formatting?

The AI SQL Formatter only changes spacing, casing and line breaks so a long query becomes readable. The statement itself is untouched, so what you paste back into your editor runs exactly the way it did before.

Is any of this paid or limited?

No. Every utility here is free with no cost and no trial, and no account or sign up is needed because they run as guest tools in the browser. Everything works on phones, tablets and desktops with nothing to install.
Still have a question? We usually reply within one working day. Report Issues A broken tool or a missing page? Tell us. Submit your AI tool Add your AI tool to our directory.