TesseraSnapAltSnap does Alt-drag. TesseraSnap does the rest.
AltSnap is free and great at dragging from inside a window. TesseraSnap adds a key for every placement, free, and in Pro a throw gesture and layouts.
- Built in Rust
- About 2 MB, one process
- Free, no time limit
- Pro $9.99 once, per PC
Where TesseraSnap is better
AltSnap is mouse-first; TesseraSnap places windows by key, flick or saved layout.
A key for every placement
22 free shortcuts on Ctrl+Alt; press again for two thirds, then a third. AltSnap has no keys for halves or thirds.
Throw it, don't carry it
An Alt-drag goes where you let go. A throw is a short flick to one of 16 targets, with a footprint first.
Every window back in its place
Layouts find each window by program and title and restore on dock, wake or app start. AltSnap's layouts are zones to drop into.
- Move & Resize, with undo Any keys, no mouse button; Esc undoes. (Pro)
- No .ini to edit Snap areas and custom sizes are set in a Settings window.
- Pin Mode and Stash Dock a window beside the rest, or slide it off the edge. (Pro)
Side by side
| AltSnap | TesseraSnap | |
|---|---|---|
| Price | Free, open source (GPL-3.0) | Free; Pro $9.99 once per PC |
| Move and resize from inside a window | ✓Alt + left or right drag | ✓Any keys, no button, Esc undoes (Pro) |
| Keys for halves, thirds, quarters | — | ✓22 shortcuts on install |
| Press again to change size | — | ✓Half → two thirds → third |
| Throw gesture | — | ✓16 targets, keys or a mouse button (Pro) |
| Save and restore windows | — | ✓Layouts, on dock, wake or app start (Pro) |
| Your own zones | ✓In AltSnap.ini, with grid mode | Ten custom sizes, no editor |
| Snap to other windows | ✓ | — |
| Always on top, transparency, roll up | ✓ | —Pin Mode and Stash instead |
| Windows versions | ✓NT 4 to 11; x86, x64, ARM64 | Windows 11 only |
Stay with AltSnap if
- moving and resizing from inside the window is all you are missing
- you want snapping to other windows, roll up or transparency
- you need open source, no cost or Windows 10 and older
Or run both
- TesseraSnap's Move & Resize is off until you pick keys, so AltSnap keeps Alt-drag.
- TesseraSnap's shortcuts are on Ctrl+Alt; AltSnap has no placement keys.
- If both snap the same drag, switch one off.
Try it next to AltSnap
Free, no time limit, no account. Every install includes a 7-day Pro trial.
Sources, checked 22 October 2026
AltSnap on GitHub, AltSnap releases (1.68), AltSnap wiki; MajorGeeks for release dates. Features of AltSnap as described in its own documentation. Windows is a trademark of Microsoft Corporation. TesseraSnap is not affiliated with AltSnap or Microsoft.