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Sarvalaya Tools

Useful work, done in your browser

Resize and convert images, polish writing, inspect JSON and solve everyday calculations. Every utility is free, needs no account and processes your content locally on your device.

✓ No sign-up✓ No uploads✓ Free to use
Tool directory

Find the right utility​

7 tools
MathsFree online tool

Percentage Calculator

Work out what X% of a number is, express one number as a percentage of another, and measure percentage increase or decrease between two values.

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ImagesPrivate image tool

Image Resizer

Resize JPEG, PNG and WebP images to exact dimensions or useful presets, keep the aspect ratio, preview the result and download it privately.

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ImagesPrivate image tool

Image Format Converter

Convert images between JPEG, PNG and WebP in your browser, choose output quality and download the converted file without uploading it.

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WritingWriting tool

LinkedIn Content Formatter

Format LinkedIn posts with Unicode emphasis, bullets and numbered lists, track the 3,000-character limit, preview the post and copy it.

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WritingWriting tool

Word & Character Counter

Count words, characters, sentences and paragraphs, estimate reading time and review the most common words in any text instantly.

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DeveloperDeveloper tool

JSON Formatter & Validator

Validate JSON, expose useful syntax errors, pretty-print with your preferred indentation, minify output, copy it or download a clean file.

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WritingText utility

Case Converter

Convert text to sentence, title, upper, lower, camel, Pascal, snake, kebab or constant case, then copy or download the result.

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Why browser-based?

Fast tools with privacy built in

These utilities use capabilities already available in a modern browser. Images, drafts and data stay on your device instead of being sent to a processing server. That makes quick tasks faster and reduces unnecessary exposure of personal or work content.

Image utilities

Resize photos for websites and social media, or convert JPEG, PNG and WebP files while controlling output quality.

Writing utilities

Format LinkedIn drafts, count words and characters, estimate reading time, and convert text between common case styles.

Developer utilities

Format, minify and validate strict JSON without pasting private API responses or configuration into a remote service.