KeroTools

Private tools for PDFs, images, data & more

Premium tools,built for speed.

Merge & compress PDFs, convert images, transform CSV/Excel/JSON, and generate QR codes & palettes — instantly in your browser. No uploads, 100% private.

Compress an Image
No uploadsBrowser-onlyNo sign-up

Drop any file. Get instant results.

We'll open the right tool for it — nothing ever leaves your browser.

Drop any file to get started

PDF, image, data & more

PDFIMGCSV
PDFWORD
PNGJPG
CSVXLSX
4.8 MB860 KB
Compress ImagePJPNG to JPGCompress PDFMerge PDFCSVXLSCSV to Excel{ }CSVJSON to CSVWord CounterQR Code Generator
Popular Tools

PDF, Image, Data & File Tools

PDF to PNG

Turn every PDF page into a lossless PNG image, downloadable individually or as a ZIP — right in your browser.

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Barcode Generator

Create a barcode in CODE128, EAN, UPC, CODE39, and more formats, then download it as PNG or SVG.

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SVGJ

SVG to JPG

Convert SVG vector files to JPG format

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GW

GIF to WebP

Convert GIF images to WebP quickly and privately

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Merge CSV

Stack multiple CSV files into one, in order, sharing the first file's header row — right in your browser.

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Case Converter

Convert text between UPPERCASE, lowercase, Title Case, camelCase, and more in one click.

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PDF to PowerPoint

Turn a PDF into a fully editable PowerPoint presentation (.pptx) — processed securely and deleted right after.

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Sign PDF

Place your signature image onto a PDF and choose the page, position, and size — runs entirely in your browser.

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.*

Regex Tester

Test a regex pattern and see live matches, groups, and flags as you type it.

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CSV{ }

CSV to JSON

Turn CSV data into a ready-to-use JSON array for your code — processed locally, right in your browser.

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{ }

JSON Formatter

Format, validate, or minify JSON instantly in your browser — results update live as you type, nothing uploaded.

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XML

XML Formatter

Format, validate, or minify XML instantly — results update live as you type, right in your browser.

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How It Works

Three Simple Steps

1

Upload Your Image

Select or drag and drop your image files. Batch processing is supported.

2

Adjust Settings

Choose your preferred quality, format, or compression level.

3

Download Result

Get your processed images instantly. No waiting, no email required.

Why Choose KeroTools?

Private Processing

Images stay on your device and process in your browser.

Lightning Fast

Instant results without uploads or server waits.

100% Free

No sign-up, watermarks, or hidden limits.

High Quality

Smart optimization keeps images sharp and compact.

Works Offline

Install it like an app — once you've used a tool, it keeps working with no signal or a slow connection.

Frequently Asked Questions

Yes — every tool is free to use, with no sign-up, no watermarks, and no hidden limits.

No. All processing happens locally in your browser. Your files are never uploaded to a server, stored, or seen by anyone but you. Read our Privacy Policy

No account is required for any tool. Just open the page and start working.

JPG, PNG, WebP, SVG, and AVIF — for both compression and conversion between formats. Browse all Image Tools

Each file can be up to 50MB. There is no limit on how many files you can process.

Yes — merge, split, compress, rotate, sign, and convert PDFs, all in your browser. Browse all PDF Tools

Yes — convert between CSV, Excel, and JSON instantly, with no software to install. Browse all Data Tools

No. Once installed as an app, KeroTools keeps working offline for any tool you have used before.

Yes — the whole site is available in 8 languages: English, Arabic, Turkish, Spanish, French, Portuguese, German, and Indonesian.

Yes — every tool is fully responsive and works in any mobile browser, with no app to install.

Ready to Start?

Convert and compress your images in seconds. Free, private, and instant — right in your browser.

Start CompressingView All Tools
No uploadsBrowser-onlyNo sign-up