Tools That Run in Your Browser
Free, self-built utilities for text, hardware testing, and audio. No installs, no sign-ups, nothing ever leaves your device.
Every tool here was built to solve one specific, everyday problem well, not to upsell a bigger product. Whether you need a quick unit conversion, a way to test a new monitor for dead pixels, or a private place to strip metadata from a photo, you can open the tool and get an answer in seconds, with no account and no waiting on a server.
163 tools across 7 tags, and every one of them is free.
Runs in your browser
Most tools process everything locally. Nothing you type or upload has to leave your device.
Free, no catch
No paid tier, no usage caps, no watermarks on what you export or download.
No sign-up needed
Open any tool and use it right away. An account is optional, only for syncing across devices.
10 languages
The whole site and every tool are fully translated, switchable from the navigation bar.
Featured Tools
Image
Poster Maker
Split any image into printable A4/Letter/A3 pages you can tape together into one big poster, with adjustable overlap for easy alignment, entirely in your browser.
FreeText
Caesar Cipher Tool
Encrypt or decrypt text with a classic Caesar cipher, with an A-Z mapping table, brute-force list, letter-frequency chart, and ROT13 shortcut.
FreeImage
SVG Converter Viewer
Convert SVG to PNG, JPEG, WEBP, BMP, ICO, or AVIF, or wrap PNG/JPEG/WEBP/BMP/GIF/ICO into a valid SVG, auto-detecting direction, directly in your browser.
FreeImage
RGB Channels Image
Split a photo into its Red, Green, and Blue channels, in grayscale or colorized form, merge them back, and download as a ZIP, directly in your browser.
FreeImage
Random Bitmap Generator
Generate a random bitmap pattern of greyscale or colored squares, with a reproducible seed and batch ZIP download, directly in your browser.
FreeImage
Image Histogram
View the Red, Green, Blue, or Luminosity histogram of a photo, with an overlay mode and Min/Max/Mean/Median/StdDev stats, directly in your browser.
FreeImage
Filters Image
Apply Instagram-style photo filters like Vintage, Lomo, or Sunrise, with intensity, vignette, and greyscale controls, directly in your browser.
FreeImage
Tilt Shift Effect
Turn a photo into a miniature-model tilt-shift effect with a linear or radial focus area, directly in your browser.
FreeImage
Reverse Image Search
Upload a photo or paste an image URL, then search Google, Bing, Yandex, and TinEye for its source or similar images.
FreeImage
Image Sharpen & Detail
Sharpen an image, apply edge enhancement, run edge detection, or remove noise, directly in your browser.
FreeImage
Image Stylize Effects
Apply emboss, glow, vignette, pixelate, or censor/redact effects to an image directly in your browser.
FreeImage
Image Split & Merge
Split an image into a grid of pieces, or merge multiple images into one, directly in your browser.
FreeImage
Image Flip & Rotate
Flip an image horizontally or vertically, or rotate it by 90°, 180°, or any custom angle directly in your browser.
FreeImage
Image Crop & Resize
Crop, resize, or round the corners of an image directly in your browser.
FreeImage
Get Colors Image
Extract a dominant color palette from an image using median-cut quantization, with copy as hex or CSS variables.
FreeImage
Image Tint Effects
Apply Colorize (single-color tint) or Duotone (two-color gradient map) effects to an image with a live preview.
FreeImage
Color Shade Generator
Generate shades, tints, tones, color schemes, and every value format (RGB, HSL, HSV, CMYK) for any color, with CSS code ready to copy.
FreeImage
Image Histogram Equalizer
Boost contrast using histogram equalization, across the whole image or just a selected area.
FreeImage
Image Levels & Threshold
Adjust tonal range with Clip, Stretch (Levels), or Threshold (black & white) modes, with a live preview.
FreeImage
Image Color Filters
Apply Grayscale, Sepia, Invert, Posterize, or Solarize filters to an image with a live preview.
FreeImage
Image Channel Mixer
Independently scale the red, green, and blue channel intensity of an image with a live preview.
FreeImage
Image Vibrance Adjuster
Boost or reduce color vividness in an image while protecting already-vivid colors and grays, unlike a flat saturation change.
FreeImage
Image Exposure Adjuster
Adjust an image's exposure in photographic stops (EV), applied in linear light for a physically accurate result.
FreeImage
Brightness Contrast Image
Adjust the brightness and contrast of an image in your browser with a live preview, then download the result.
Frequently asked questions
›Is WMW really free? What's the catch?
Yes, every tool is completely free with no usage limits, no watermarks, and no hidden paid tier. Most tools run entirely as JavaScript in your browser, so there is no server cost per use to recover, which is what lets us keep everything free.
›Do I need to create an account to use the tools?
No. Every tool works immediately with no sign-up. Creating a free account is optional and only unlocks a few conveniences, like syncing your favorites and recently-used tools across devices instead of storing them in this one browser.
›Is my data safe? Do you upload my files or text anywhere?
Most tools, especially anything working with images, audio, or sensitive text, process everything locally in your browser using standard web APIs and never send your file or input to a server. Any tool that does need a server round-trip says so directly on the page.
›What kinds of tools are available?
Calculators covering everyday math, finance, and health; text tools for counting, converting, and transforming; image editors for cropping, filtering, and adjusting; hardware and display test tools for checking a monitor, keyboard, or webcam; and generators for things like passwords, hashes, and random picks.
›Which languages is the site available in?
The interface and every tool are fully translated into 10 languages. Use the language switcher in the top navigation bar to change it at any time; your choice is remembered for future visits.