Is 123 Toolbox free to use?

Yes. Every tool on 123 Toolbox is free and runs directly in your browser — no account or payment required.

Are my files uploaded to a server?

No. Files and text are processed locally in your browser and are not uploaded by 123 Toolbox, except for a few tools that clearly depend on an external resource.

What kinds of tools are available?

123 Toolbox includes hundreds of tools for PDFs, images, developers, designers, Khmer language, geospatial data, security, math, and everyday work.

Which languages does 123 Toolbox support?

The interface supports English, Khmer, and a bilingual English–Khmer mode.

How do I use Image Histogram?

Upload an image Toggle R/G/B/luminance channels Read the channel statistics

Is Image Histogram free to use?

Yes. Image Histogram on 123 Toolbox is free and runs directly in your browser — no account or payment required.

Do I need to install anything to use Image Histogram?

No installation is required. It runs in a modern web browser and processes your input locally on your device.

Is Image Histogram available in Khmer?

Yes. The 123 Toolbox interface supports English, Khmer, and a bilingual English–Khmer mode.

All tools / ឧបករណ៍ទាំងអស់Image Histogram — អ៊ីស្តូក្រាមរូបភាព

Image Histogram

អ៊ីស្តូក្រាមរូបភាព

Analyse the tone distribution of a photo — RGB channel and luminance histograms with per-channel statistics. / វិភាគការចែកចាយសំនៀងនៃរូបថត — អ៊ីស្តូក្រាម RGB និងពន្លឺ ជាមួយស្ថិតិនៃឆានែលនីមួយៗ។

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Frequently asked questions / សំណួរដែលសួរញឹកញាប់

Analyze the red, green, blue, and luminance distribution of a photo with a histogram. / វិភាគការចែកចាយក្រហម បៃតង ខៀវ និងពន្លឺរបស់រូបថត ជាមួយអ៊ីស្តូក្រាម។

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