Image Straighten Tool - Online Fix Crooked Horizons
Draw a line along the horizon and the tool rotates the image to make it perfectly level. Small rotation. Canvas editing.
UD5 Toolkit
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Supports JPG, PNG, GIF, WebP, SVG, BMP
Draw a line along the horizon and the tool rotates the image to make it perfectly level. Small rotation. Canvas editing.
Build a horizontal scroll‑snap container with configurable snap‑type and alignment. Perfect for image galleries.
Apply rounded corners to an image and keep the background transparent. Save as PNG. Perfect for avatars and icons.
Take a screenshot of the current browser tab using Screen Capture API. Crop, annotate with text and arrows, and download as PNG. Local only.
Remove solid or similar backgrounds from images using color thresholding. No AI, just quick client-side canvas processing. Download as PNG.
Extract the thumbnail image for any YouTube video by pasting its URL. Download in multiple resolutions (HD, SD). Simple and fast.
Enter drum diameter, depth, and material to find the shell's approximate fundamental note. For tuning reference.
Remove clicks, pops, and crackle from audio recordings. Useful for digitizing vinyl. Threshold‑based local processing.
Enter a URL and see a preview of how it will appear when shared on Facebook, Twitter, LinkedIn. Detect missing tags.
Paste a URL and see the og:title, description, image, and twitter card that will be used when shared. No server needed.
Select knife type and see recommended sharpening angle. Visual guide with degree display. Perfect edge every time.
View and edit CSV data in a familiar table interface. Add/delete rows and columns, sort, and export. Fully local, no cloud sync.
Display a dynamic list of keyboard shortcuts for the current browser and operating system. Filter by category. Keep it open for reference.
Upload a small file to see each byte as a block, color-coded by value. Visualize the structure of binary data. Client-side.
Drop any file to see its raw hexadecimal representation and ASCII side‑by‑side. Navigate with offset. Client‑side only.
See the roving tabindex pattern in action. Use arrow keys to navigate a list. Copy the accessible JavaScript pattern.
Find the date of Easter Sunday for any given year. Learn about the computus algorithm. Simple and accurate.
Build a color palette for charts that works for protanopia, deuteranopia, and grayscale. Export as array.
Build a group of `<details>` elements where opening one closes others. Optional JavaScript. Copy the accessible snippet.
Full-featured scientific calculator with trigonometric, logarithmic, and exponential functions. Clean interface and keyboard support. No installation required.
View and edit ID3 tags of MP3 files, including title, artist, album, and artwork. All processing in your browser; no files uploaded.
Click a root key and chord type (Maj, min, 7th) to see the notes highlighted on a piano keyboard. Learn chords fast.
Enter a password and see the estimated time it would take to crack using brute force at different speeds. Educational.
Practice calculating network ID, broadcast address, and usable IPs from a random IP/CIDR combination. Instant feedback and score tracking. Perfect for CCNA prep.
Enter room dimensions and number of walls to calculate needed 4x8 or 4x12 sheets, plus joint compound and tape estimate. Local tool.
See how many tabs you have open and estimate memory usage based on navigator object. Fun productivity check.
Enter a song title and artist to find lyrics using public APIs. Quick preview and copy. A lightweight tool for music lovers.
Find what day of the week any past or future date falls on. Uses Zeller’s congruence. Fun historical reference tool.
Press any key and see the full KeyboardEvent object: key, code, keyCode, modifier status. Dev tool.
Enter total drive time or playlist length to figure out how many songs you need. Convert time to estimated tracks.