Most Visited

Free

Downloader

Twitch Clip Downloader

Paste a link to a public Twitch clip and download it. No account, no extension, no Twitch login.

Free

Calculators

Acreage Calculator

Calculate acreage for rectangular, square, triangular, or circular land, converted to acres, hectares, and square meters/feet/yards.

Free

Hardware

Speaker & Headphone Test

Test your speakers and headphones right in the browser: left/right channel checks, a stereo test, a bass tone, and a 20 Hz to 20,000 Hz frequency sweep, all generated live with the Web Audio API.

Free

Image

Favicon Generator

Upload an image and get a complete favicon package: favicon.ico, every PNG size browsers and devices expect, apple-touch-icon, Android icons, a site.webmanifest, and the HTML to paste in, all in one ZIP.

Free

Hardware

Ghosting Test

Test your monitor for screen ghosting and motion blur with a moving block, scrolling text, or fine-line pattern at an adjustable speed.

Free

Text

Excel To HTML Table Converter

Paste from Excel or Google Sheets, or upload a .xlsx/.xls/.csv file, and get a clean HTML table with a live preview, optional styling, and numeric column alignment.

Free

Text

DMARC Record Generator

Build a DMARC DNS record from plain-language fields, with staged rollout presets and a live enforcement-level indicator.

Free

Hardware

sRGB Color Test

Check your display against a 24-patch sRGB reference set: primaries, memory colors, and a neutral grey ramp, with a fullscreen patch view.

Free

Hardware

Scroll Test

Test your mouse scroll wheel or trackpad with live direction, delta values, speed, and automatic wheel chatter detection.

Free

Hardware

Antenna Length Calculator

Calculate the physical length of a dipole, vertical, or loop antenna from an operating frequency, right in your browser.

Free

Calculators

APR Calculator

Calculate the real APR of a loan including fees and discount points, right in your browser.

Free

Calculators

Appliance Energy Cost Calculator

Estimate the daily, monthly, and annual electricity cost of an appliance, with a running multi-appliance total.

Free

Calculators

555 Timer Calculator

Calculate 555 timer astable-mode frequency, period, and duty cycle from R1/R2/C, or solve backward for the resistors needed to hit a target frequency and duty cycle.

Free

Calculators

Apgar Score Calculator

Calculate and categorize a newborn Apgar score from its five clinical signs, right in your browser.

Free

Hardware

Keyboard Tester

Test every key on your keyboard in the browser: a full 101-key visual layout, key/code/modifier details, rollover and anti-ghosting stats, chatter detection, and a tested-key progress tracker.

Free

Downloader

Facebook Video Downloader

Paste a link to a public Facebook video and download it. No account, no extension, no Facebook login.

Free

Hardware

Gamma Calibration

Estimate your display's effective gamma with the classic stripe-vs-solid-patch test across five candidate gamma values, sRGB 2.2 marked.

Free

Hardware

P3 Gamut Test

Compare sRGB against Display P3 across 12 hues around the color wheel to see exactly where wide-gamut displays show more vivid color.

Free

Image

Add Noise Image

Add random grain or color noise to an image, right in your browser.

Free

Calculators

CSR Viewer

Decode a PEM-encoded Certificate Signing Request (PKCS#10): Subject, public key, signature algorithm, and Subject Alternative Names, then verify its self-signature is actually valid.

Free

Downloader

Twitter/X Video Downloader

Paste a link to a video or GIF post on X (Twitter) and download it. No account, no extension, no X login.

Free

Image

Adjust Gamma Image

Brighten or darken the midtones of an image with a gamma curve, right in your browser.

Free

Calculators

Absolute Value Calculator

Find the absolute value of a number or arithmetic expression with a step-by-step explanation, or process a whole batch list at once.

Free

Hardware

Webcam Test

Test your camera and microphone right in the browser: live preview, device switching, resolution and FPS readout, a mic level meter, and snapshot capture.

Free

Calculators

APR to APY Calculator

Convert between APR and APY at any compounding frequency, with a comparison table and dollar example.

Free

Calculators

529 College Savings Calculator

Project 529 education savings growth and see what percentage of a future college cost your savings are on track to cover.

Free

Image

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.

Free

Hardware

Backlight Bleed Test

Test your LCD screen for backlight bleed with a full-screen pure black pattern and a 3x3 scan grid, plus IPS glow guidance.

Free

Image

Bulk Batch Adjust HSL Image

Apply the same hue, saturation, and lightness adjustment to many images at once, right in your browser.

Free

Image

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.

Free

Downloader

Mixcloud Track Downloader

Paste a Mixcloud track link and download the public stream for offline listening. No account, no extension, no Mixcloud login.

Free

Image

Reverse Image Search

Upload a photo or paste an image URL, then search Google, Bing, Yandex, and TinEye for its source or similar images.

Free

Image

Image Crop & Resize

Crop, resize, or round the corners of an image directly in your browser.

Free

Image

Brightness Contrast Image

Adjust the brightness and contrast of an image in your browser with a live preview, then download the result.

Free

Hardware

Greyscale Test

Check a display for banding, shadow crushing, and highlight clipping with a real continuous 0-255 grey gradient, an interactive value readout, and a dedicated near-white patch set.

Free

Hardware

Burn-in Test

Reveal OLED, plasma, or other display burn-in with solid gray, black, and white fields, plus a Flicker Boost mode that alternates gray shades to make faint marks easier to spot.

Free

Hardware

Color Accuracy Test

Play an interactive color-matching game: reproduce a target color with RGB sliders and get a perceptual accuracy score.

Free

Hardware

Gradient Test

Check your screen for color banding with grayscale, RGB channel, radial, and hue wheel gradient patterns, in fullscreen.

Free

Video

Adjust Video Speed

Speed up or slow down a video and export it, right in your browser.

Free

Image

Remove Background Image (AI)

Automatically cut the background out of a photo using an on-device AI model, right in your browser.

Free

Image

Bulk Batch Adjust Gamma Image

Apply the same gamma correction to many images at once, right in your browser.

Free

Music

Voice Recorder

Record audio from your microphone right in the browser: live level meter and waveform while recording, pause/resume, multiple takes with a visual waveform, rename, playback, and download as a standard audio file.

Free

Downloader

Streamable Video Downloader

Paste a Streamable video link and download it for offline viewing, for public videos. No account, no extension, no Streamable login.

Free

Downloader

Pinterest Video/Pin Downloader

Paste a Pinterest pin link and download the video or full-resolution image, for public pins. No account, no extension, no Pinterest login.

Free

Image

Tilt Shift Effect

Turn a photo into a miniature-model tilt-shift effect with a linear or radial focus area, directly in your browser.

Free

Image

Image Split & Merge

Split an image into a grid of pieces, or merge multiple images into one, directly in your browser.

Free

Image

Get Colors Image

Extract a dominant color palette from an image using median-cut quantization, with copy as hex or CSS variables.

Free

Image

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.