True redaction removes the text and images from the file — not a black box on top. Plus real in-place text editing, fill + sign, reorder pages, and OCR.
LaunchEdit text in place, sign, redact, fill forms, and reorganize PDF files in your browser — all on your device. No upload, no subscription.
Drop two versions of a contract or drawing set. Moved notes read as moves, changed values light up digit by digit, and hidden text is named.
LaunchSide-by-side or overlay PDF diff driven by one engine that reads each file into a structured model — text, vector geometry, images, form fields, annotations — and compares the models. Moves show as moves, edits show only where they happened, and any PDF type works without picking a mode.
Drop a Gerber ZIP, an ODB++ .tgz or an IPC-2581 .xml and inspect every layer — compare revisions, snap-to-pad measure, run DRC and preview the board in 3D.
LaunchOpen Gerber, Excellon, ODB++ and IPC-2581 PCB files. Inspect layers, measure traces, run DRC, export to PNG / SVG / DXF.
Open a .step / .stp part and it measures itself: volume, thinnest wall, draft and undercuts on load, and a hole list with a BOM in one click. Measure, section, export STL.
LaunchOpen a STEP / STP part and it measures itself — volume, thinnest wall, draft and undercut checks on load, plus hole detection with a BOM. Measure, section, export STL. Rust + WASM B-rep kernel, runs in your browser.
Compress, merge, split, convert, and manipulate PDF files.
Resize, compress, convert, and transform images.
Convert, compress, and cut audio and video — MP3, WAV, MP4, WebM, Opus — all in your browser, nothing uploads.
Simulate a canning process down to its F0 sterilizing value.
Encrypt files, share encrypted notes as links, and read passport IDs and Windows event logs.
Analyze packet captures, move files between devices, and console into network gear — nothing uploads.
Scan receipts into an expense ledger — your receipts and spending stay on your device.
View, measure, and repair CAD and 3D files — STEP, STL, OBJ, PLY, GLB, 3MF, DXF, and Gerber — right in your browser. Nothing uploads.
Open a .step / .stp part and it measures itself: volume, thinnest wall, draft and undercuts on load, and a hole list with a BOM in one click. Measure, section, export STL.
Launch STEP Viewer
Drop it on this page. The viewer reads the file in your browser, so you need no CAD program and no account. It works on Windows, Mac and Linux, with nothing to install.
Yes. Both are ISO 10303-21 files, often called STEP AP203, AP214 or AP242. Some programs save .step and others .stp; the viewer opens both.
AP203 and AP214 are the most reliable, and most AP242 files open too, because AP242 uses the same solid geometry. The viewer reads planes, cylinders, cones, spheres, tori, B-spline and NURBS surfaces, and swept and revolved surfaces. It shows the solid model only; PMI annotations such as GD&T are not displayed.
When a part loads, it reports volume, surface area, bounding box and the thinnest wall, and flags missing draft, undercuts and sharp internal corners. Click Detect holes to list each hole by diameter, through or blind, and turn on the wall-thickness map to see thin areas in colour.
Yes. Export saves the model as STL, OBJ, GLB or glTF. The export is the triangle mesh you see in the viewer, which is what slicers and most 3D tools need.
Yes. The assembly tree lists every part. Click a part to see its name, part number, triangle count and size, hide parts to see inside, or use the exploded view.
Use them as a quick first look. They help you read a supplier's part or spot a thin wall before you send a model out, but tolerances and sign-off belong in your CAD package or with your manufacturer.
If the viewer cannot read a file, it says so. Check that the file opens in the program that made it, then export it again as AP214. On some complex curved parts the 3D view can show small gaps between faces.
No. Loft's own CAD engine, compiled to WebAssembly, loads into your browser once and then parses each file on your device. The file is not sent to a server.
No. Export the part as STEP from your CAD program instead. For 2D drawings, save them as DXF and use the DXF Viewer.
No sign-up · Runs in your browser · Files aren't uploaded.
