List of astrometric solvers

Programs capable of Astrometric solving:

Engine Front-end/ installer License External access Blind solving 360° (off line) Cloud access to nova.astrometry.net MS-Windows (X86) Linux (X86) Linux (ARM) MacOS
Astrometry.net GPL3+ command-line nova.astrometry.net ✓ ✓ ✓(Win10 Linux subsystem) ✓ ✓ ✓
,, All sky solver (inc Astrometry.net installer) GPL3+ COM interface ✓ - ✓(Linux emulator Cygwin) - - -
,, ANSVR (inc Astrometry.net installer) GPL3+ API interface ✓ - ✓(Linux emulator Cygwin) - - -
,, Astrometry.net API lite (inc. installer) GPL3+ API interface ✓ - ✓(Win10 Linux subsystem) ✓ - -
,, Astrotortilla (inc. Astrometry.net installer) GPL3+ - ✓ - ✓(Linux emulator Cygwin) - - -
,, Cloudmakers (inc. Astrometry.net installer) GPL3+ ? ✓ - - - - ✓
,, StellarSolver GPL3+ - ✓ - ✓ ✓ ? ✓
ASTAP MPL 2.0 command-line ✓ - ✓ ✓ ✓ ✓
PlateSolve2 v2.28 Free to use command-line - - ✓ - - -
Regim Free to use - - - ✓ ✓ ? ✓
Siril GPL3+ - - - ✓ ✓ ✓ ✓
SIPS Free to use - - - ✓ - - -
Tetra3 MPL 2.0 Python3 class - - ✓ ✓ ✓ ✓
XParallax viu Free software, CC BY-NC-ND 4.0 - - - ✓ - - -
Astrometrica Proprietary - - - ✓ - - -
Image Link TheSkyX Proprietary - ✓ - ✓ ✓ - ✓
Observatory Proprietary - - ✓ - - - ✓
PinPoint Proprietary DLL ✓using external programs ANSVR & Astrometry.net ✓ ✓ - - -
PixInsight Proprietary - - - ✓ ✓ - ✓
PlateSolve3 Proprietary command-line ✓ - ✓ - - -
PRISM Pro Proprietary - ✓ ✓ ✓ - - -

The solvers Elbrus and Charon are obsolete and no longer developed.