Open STEP, STP, IGES, IGS, SLDPRT, 3DS and Rhino files right in your browser. Rotate, zoom and inspect the model, then measure lengths, diameters, radii and angles directly on the geometry. It’s a quick way to check dimensions without launching heavy CAD software or asking a colleague for a screenshot. Your file never leaves your device.
Need a SolidWorks part in a neutral format? Convert a .SLDPRT file to STEP or IGES, or write DXF edges, without installing SolidWorks. This helps when a supplier, customer or CAM system needs a universal file. The conversion happens in the browser, so your design stays private, and you don’t have to hunt for a licence.
Turn a 3D model into a flat 2D drawing. Project STEP, IGES, SLDPRT, 3DS or Rhino files into DXF views that laser cutters, wire-cut EDM machines and CNC programmers can use straight away. It skips the manual redrawing, which saves time and avoids transcription errors.
Look up ISO 286 limits for holes and shafts in seconds. Enter a nominal size and a fit such as H7, g6 or h7 and get the upper and lower deviations, plus the resulting clearance or interference. It’s useful for design reviews, inspection planning and quoting. Popular lookups like 20 mm H7 and H7/g6 are one click away.
Find the right drill for the thread you want to cut. The calculator covers metric threads (M3, M6, M8 and more) and UNC sizes, so you get the correct tap drill without flipping through a wall chart. M8 comes out at 6.8 mm, for example. It’s a small tool, but one that saves scrap parts and broken taps.
Estimate the weight of a plate, bar, tube or block before you order stock or quote a job. Choose a material such as steel, stainless steel, aluminium, brass or titanium, enter the dimensions, and get the mass using standard densities. Steel uses 7850 kg/m³ and stainless 8000 kg/m³. It works for purchasing, shipping estimates and costing.
Upload a STEP, IGES, SLDPRT, 3DS or Rhino model, choose a material, and the tool calculates the part’s mass from its actual volume. You don’t need to rebuild the part in CAD or work out the weight by hand. It’s ideal for complex shapes where a simple formula falls short, and the file is processed on your device.
Switch quickly between millimetres and inches, kilograms and pounds, bar and psi, and other common engineering units. The interface is clean and fast, so converting a drawing dimension or a pressure rating takes a few seconds. It’s handy when working with international drawings that mix metric and imperial.
Check whether your text and background colours meet WCAG accessibility standards. Enter two colours and see the contrast ratio, with clear pass or fail results for AA and AAA levels. Designers and developers use it to make interfaces readable for everyone, including people with low vision.
Build and explore colour palettes with HEX, RGB and HSL values side by side. Adjust shades, convert between formats and copy the values you need. It’s a lightweight workspace for choosing brand colours, planning a UI theme, or trying out combinations before you commit to a design.
Shrink JPG and PNG files so pages load faster and email attachments stay small. Drag in an image, compress it, and download a lighter version with little visible quality loss. Because the work happens in your browser, your photos and screenshots aren’t uploaded to a server.
Paste messy JSON and get clean, readable, properly indented output. The tool also validates your data and points out syntax errors, so you can find the missing comma or bracket quickly. Developers use it for debugging API responses and checking configuration files. Your data stays on your device.
Create a QR code for a link, a piece of text, a contact detail or a Wi-Fi login in a few clicks. Download it and put it on a poster, a product label, a business card or a machine tag. It’s quick and free, and there’s nothing to sign up for.
Paste two versions of a text and see exactly what changed. The diff tool highlights additions, deletions and edits side by side. It suits proofreading, reviewing contract revisions, comparing code snippets and checking that a copy-paste didn’t alter anything.
Switch text between UPPERCASE, lowercase and Title Case with one click. It also tidies up paragraphs. It’s a small time-saver for editors, marketers, developers and anyone who has pasted a heading in the wrong case.
The calculators, the viewer, and the design and utility tools stay free in the browser, with no account. CAD conversion includes 2 free files a day, and DXF export includes 2 free files a day, on this browser and network. The next file asks for a trial or a subscription. Files stay on your device wherever the browser can do the work. Bookmark the site, share it with your team, and tell us what to build next through the feedback page.