Core Utilities

24 Tools to Level, Measure, Convert, Calculate, & Network. No 3rd-party ads.

Everyday tools on one screen, working on your device. Every tool works offline except the network tools, which stay off until you turn them on in Settings.

Measure
• Level: bubble level with X and Y angles.
• Ruler: on-screen ruler you calibrate with a standard card.
• Protractor with Inclinometer
• Compass, with true north from a declination you set
• Magnetic Field and Vibration meters, with peak readings

Image & Video
• Vectorize: turn a picture into a crisp SVG drawing, with PNG export up to 4x.
• Compress & Resize: save photos as JPEG, PNG, WebP, or HEIC (where your device supports it), at the quality and size you pick.
• Video to GIF/WebP: make small animated GIFs or WebPs from a video, or convert a GIF to WebP, with frame-rate options for WebP.
• Trim Video: cut a clip and keep its size or save it at 1080p, 720p, or 480p.
• Strip Metadata: remove Exif, XMP, and other hidden details from photos before you share them.
• Color Picker: tap a picture to get HEX, RGB, and HSL values.
Each result is saved as a new file. Your originals are never changed.

Calculate
• Unit Converter: length, weight, volume, area, speed, temperature, data, and time
• Percent: % of, what %, and % change
• Discount, with savings and tax
• Tip & Split
• Days Between
• Coin Flip

Share & Network
• FTP / SFTP File Transfer: share a folder from your device with a computer on the same Wi-Fi™, or connect to your own SFTP or FTP server to upload and download files. Encrypted SFTP is the default, and saved connections stay encrypted on your device.
• Network Speed Test: download, upload, ping, and jitter with the open NDT7 test, run only when you tap Start test. The test uses Measurement Lab (M-Lab) servers, which see your IP address and publish results as open internet research data.
• QR Generator: make QR Code™ symbols for text, links, and Wi-Fi™ networks, styled with dot shapes, gradients, and a center logo, with a built-in scan check. It also reads a QR code from a picture.

Sound & Light
• Sound Meter, Light Meter, and Barometer

• Tablet Support: runs on Android phones and tablets.

No third‑party ads. No account. No AI inside.

$2.99 one-time purchase. No trial. No subscription.

Wi-Fi is a trademark of its respective owner. Core is not affiliated with it.
QR Code is a registered trademark of DENSO WAVE INCORPORATED. Core Utilities is not affiliated with DENSO WAVE.