Everyday tasks,
made simple.
No installation. No account.
Useful tools, all in one place.
Simplify cumbersome tasks.
Background remover↗
Erase photo background with AI and save as transparent PNG.
TextCharacter counter↗
Check the number of characters including and excluding spaces and UTF-8 bytes at once.
CalculatorsPercentage calculator↗
Easily calculate ratios, discount rates, and increase/decrease rates.
CalculatorsDate calculator↗
Check the number of days between two dates and D-Day.
CalculatorsUnit converter↗
Convert length, weight, and temperature to familiar units.
DeveloperJSON formatter↗
Sort your JSON nicely and check its grammar.
DeveloperBase64 converter↗
Encode and decode text including Hangul.
DeveloperURL encoder↗
Safely convert the characters in the address.
SecurityPassword generator↗
Create a random string with any length and character combination.
DeveloperUUID generator↗
Generate as many version 4 UUIDs as needed.
Images & designColor converter↗
Convert HEX colors to RGB and HSL.
Images & designImage format converter↗
Convert images between PNG, JPG and WebP.
Images & designImage resizer↗
Reduce the photo size and save it as WebP, JPEG, or PNG.
TextDuplicate line remover↗
Clean up overlapping lines and make your list neater.
VideoVideo format converter↗
Re-encode the video to MP4·WebM.
VideoCompress video↗
Compare file sizes by adjusting resolution, bitrate, and FPS.
VideoGIF maker↗
Save a short section of a video as a moving GIF.
DeveloperSHA Hash Calculator↗
Calculate and compare SHA-256·SHA-384·SHA-512 hashes of files or text.
DeveloperUnix timestamp conversion↗
Convert seconds/milliseconds timestamps to UTC dates or convert dates to numbers.
Images & designAspect Ratio Calculator↗
Reduce the aspect ratio and calculate the new height to match the original proportions.
Images & designOnline Photo Editor↗
Crop, rotate, correct brightness and color, add text, and mosaic photos in your browser.
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Tool input is not sent to the server.
Ready wherever you are
Use it comfortably on PC and mobile.
Choosing the right tool for the job
Check the length of the text by distinguishing between the number of characters and bytes, and adjust the size of the photo after removing the background. For development conversions, you must choose a tool that matches your input format to preserve the original data. You can check the order of use and precautions in the guide for each field.
Tool Utilization Blog
See all blogs →How to Remove Image Backgrounds and Improve Edges
How to save a photo as a transparent PNG with the free image background removal tool. Take a look at the differences between precise and fast modes, residual background and border correction, and settings to check when hair is erased.
Read the article ↗▧ ImageReduce Image File Size: WebP vs PNG vs JPEG
Describes the order of adjusting pixel size, storage format, and quality when reducing image size. Compare the transparency and compression differences between WebP·PNG·JPEG and Moyoutil's actual conversion limitations.
Read the article ↗% calculationPercentage and Discount Calculations: Worked Examples
The formula for calculating the percentage of the total value, the price after discount, and the actual discount rate is explained as an example. Check out the double discount of 20% and then 10%, and the difference in increase/decrease rate and percentage points.
Read the article ↗{ } developmentJSON Formatting, Base64 and URL Encoding: A Practical Guide
Distinguishes the purposes of JSON grammar checking and cleaning, UTF-8 Base64 encoding/decoding, and URL parameter encoding. We've compiled examples you can run yourself, as well as big integers, double encoding, and security precautions.
Read the article ↗⇆ ImageConvert image formats: PNG, JPG and WebP explained
Learn how to convert PNG to JPG and JPG to PNG or WebP. Explains the difference between extension renaming and actual image conversion, browser encoding principles, and limitations of transparent backgrounds and metadata.
Read the article ↗▶ VideoVideo formats and codecs: MP4, WebM and MOV explained
Explains the differences between MP4·WebM·MOV containers and codecs, re-encoding and repackaging, and limitations of browser video conversion.
Read the article ↗▶ VideoHow to convert videos to MP4 or WebM
We guide you through the procedures for using Moyoutil, from selecting a video to setting the output format, resolution, and bitrate, including sound, and previewing and downloading.
Read the article ↗▶ VideoVideo file size: bitrate, resolution and FPS explained
Explains how to estimate video capacity from bitrate and length, how resolution and FPS affect video quality, and the limitations of recompression.
Read the article ↗▶ VideoHow to compress videos: settings and result comparison
Explains how to start with 720px·1.5Mbps in the Moyoutil video compression tool, adjusting settings for image quality issues, and comparing and downloading capacity.
Read the article ↗GIF videoHow animated GIFs work: palettes, frames and file size
Explains GIFs' frames and color palettes, FPS and latency, why they can be larger than videos, and the Moyoutil encoding method.
Read the article ↗GIF videoHow to make a GIF from a video
We guide you through how to create a GIF from a short scene of a video by setting the start time, length, pixel size, and FPS, as well as limitations and the order of reviewing the results.
Read the article ↗# DevelopmentHow to calculate SHA-256 hashes: How to compare files and use text checksums
Describes how to calculate and compare SHA-256 hashes of files and UTF-8 text. Check out examples of SHA-384·SHA-512 selection, line break differences, causes of inconsistencies, and limitations of hash verification.
Read the article ↗⏱ DevelopmentUnix timestamp conversion: Understanding seconds, milliseconds, and UTC time differences
Convert Unix timestamps to dates and UTC dates to seconds/milliseconds numbers. 1970 reference, time zone indication, negative values and incorrect date entry are explained with actual calculation examples.
Read the article ↗↔ ImageHow to calculate aspect ratio: Match 16:9·4:3 image and video sizes
Describes how to reduce the aspect ratio and calculate the height to fit the new width. Check out the 1920×1080 and 16:9 examples, integer pixel rounding, and the difference between cropping and stretching.
Read the article ↗✎ ImageHow to use online photo editor: Crop, Brightness correction, Text, Mosaic
Instructions on how to crop, rotate photos, and adjust brightness, contrast, and saturation without installation. Check the settings for adding text, mosaic, blacking out, undo, and saving PNG, JPEG, and WebP.
Read the article ↗