The Wayback Machine - https://web.archive.org/web/20150112014013/http://jsmess.textfiles.com:80/

Imagine every computer that ever existed, in your browser.

The JAVASCRIPT MESS project is a porting of the MESS emulator, a program that emulates hundreds of machine types, into the Javascript language. The MESS program can emulate (or begin to emulate) a majority of home computers, and continues to be improved frequently. By porting this program into the standardized and cross-platform Javascript language, it will be possible to turn computer history and experience into the same embeddable object as movies, documents, and audio.

We have a long way to go, but this open beta is now available.

Try some quick demos.

It'll help if you're running a fast system and a recent browser.

CLICK HERE TO SEE MORE DEMOS

CONSOLES

Atari 2600• Atari 5200• Atari 7800• Atari Lynx• Bally Astrocade• Bally Computer System• ColecoVision
Exidy Sorcerer• Mattel Aquarius• Mattel Intellivision• Intellivision (Sears)• Nintendo Gameboy• Odyssey2• Sega 1000• Sega Genesis• VTech CreatiVision• Game Gear (Europe/America)• Neo-Geo AES• GCE Vectrex• Master System II• Master System I• Master System (Japan)

APPLE COMPUTERS

Apple IIe• Apple //c• Apple IIgs• Macintosh II (FDHD)• Macintosh Classic• Macintosh II• Macintosh IIci• Macintosh IIsi• Mac Plus• Macintosh SE• Macintosh SE (FDHD)

ATARI COMPUTERS

Atari 400• Atari 800

COMMODORE COMPUTERS

Commodore 16 (PAL)• Commodore 128• Commodore 64• Commodore PET• PET 2001-N

TANDY COMPUTERS

Tandy Color Computer• Color Computer 2• Color Computer 3 (NTSC)• Tandy 1000 HX• Tandy 1000 RL• Tandy 1000 TX• Tandy 102• Tandy/Radio Shack Color Computer• Tandy 1000-TX• TRS-80• TRS-80 Model I (Level II Basic)• TRS-80 Model III• TRS-80 Model 4• TRS-80 Model 4P• TRS-80 Model 100

AND MANY MORE

ABC 80• ABC 800 C/HR• ABC 802• Franklin Ace 100• Acorn System 1• Apogee• Atom• B128 (60Hz)• B128-80HP (60Hz)• B500 (proto, 60Hz)• BBC Micro Model A• BBC Micro Model B• Bridge Companion• BBC Micro Model B+ 64K• BBC Master• Bondwell 12• Bondwell Model 2• V-10• V-20• Cat• CIP-01• CIP-03• CM-1800• Kompanion 1• Amstrad CPC464• Amstrad CPC6128• Amstrad CPC664• Chuang Zao Zhe 50• Dream 6800• Data Applications DAI• DECTalk DTC-01• IQ-1000 DPC-100 (Korea)• IQ-1000 DPC-180 (Korea)• IQ-1000 DPC-200 (Korea)• Einstein TC-01 + 80 column device• Tatung Einstein• Explorer/85• Expert 1.0 (Brazil)• Expert 1.1 (Brazil)• Expert 1.3 (Brazil)• Expert DDPlus (Brazil)• FM-7• FM-8• FS-1300 (Japan)• FS-4000 (Japan)• Galaksija• Galeb• Geneve 9640• FC-200• HB-10P• HB-501P• PK8000 Sura/Hobby• HP48GX• HP48SX• Inves Spectrum 48K+• IQ-151• Ivel Ultra• JET• JR-100• Kaypro 4 - 4/83• Kaypro II• Kyotronic 85 (Japan)• PK8020 Kontur• PK8020 Korvet• KR-03• Lambda 8300• Laser 110• VTech Laser 200• Laser 210• Laser 310• Laser 350• Laser 500• LNW-80• Lviv• M-10• Sord M5• Mikrosha-86RK• Manager (Finland)• mbc55x• Microbee 16 Standard• Microbee Personal Communicator• MC-10• Microtan 65• Mikro-80• Mikron-2• Mikrosha• Mistrum• ML-FX1• MikroMikko 1 M6• MO5• MO5E• MO5 NR• MO6• MOD-8• MPC-100• Microprofessor III• MSX• MSX2• MSX2+• MTX 512• MZ-700• MZ-80A• OSCOM Nano• NC100• NC150• PK8020 Neiva• NeoGeo Pocket• SNK Neo Geo Pocket Color• Nimbus• NMS-801• Omni II• Othello Multivision FG-1000• Othello Multivision FG-2000• Ondra• Ondra ViLi• Pel Varazdin Orao• Orao 103• Oric Atmos• Orion 128• Orion 128 + Z80 Card II + IDE• Orion 128 + Z80 Card II + IDE (MS7007)• Orion 128 (MS7007)• Orion Pro• Orion 128 + Z80 Card II• Orion 128 + Z80 Card II (MS7007)• Orizon-Micro• Osborne 1• Philips P2000T• P500 (proto, a.k.a. B128-40 or Pet-II)• PC (CGA)• PC-8201A• PC8300• PC (EGA)• PC (Hercules)• PC/M• PC (MDA)• Pecom 64• WAVY PHC-23 (Japan)• P.I.M.P.S.• PX-07• PIPBUG• PMD-85.1• PMI-80• Poly-88• Poly-Computer 880• Power 3000• Pravetz 82• Pravetz 8D• Pravetz 8M• Primo A-32• Primo B-32• Prodest PC 128• PX-4• PX-4+• Pyldin-601• Tomy Pyuuta• QL (UK)• QL (USA)• Radio-86RK (16K RAM)• Radio-86RK (4K ROM)• Radio-99DM• Radionic• Radio-86RK (ROM/RAM Disk)• Rameses (Oceania)• Ringo 470• Gundam RX-78• SacState 8008• Sam Coupe• SAPI-1 ZPS 1• SAPI-1 ZPS 2• Savia 84• SBC6510• SC-3000• SC-3000/Super Control Station SF-7000• CPS Changer - Street Fighter Alpha - Warriors' Dreams (Publicity US 950727)• CPS Changer - Street Fighter Zero (Japan 951020)• SOL-20• ZX Spectrum 128• ZX Spectrum 80K• Specialist M• ZX Spectrum IDE• Specialist MX• Spektr-001• Spektr BK-001• Studio II• Super-80 (V1.2)• Super-80 (V2.2)• Super-80 (with colour)• Super Game Boy• SVI-318 (PAL)• SVI-728• SVI-738• SX-64 Executive Computer (PAL)• System-80• T9000• DPC-200• DPC-200A• Tano Dragon 64 (NTSC)• TC-2048• TI-99/4• TI99/4A Home Computer (US)• SGCPU (a.k.a. 99/4P)• TI-99/8 Computer (US)• TK85• TK 90X Color Computer• TK 95 Color Computer• Telmac 2000• TO7• TO7/70• TO8• Timex Sinclair 1500• TS-2068• Tomy Tutor• UT-88• UT-88 mini• PK8000 Vesta• VG-8020-00• VG-8020-20• VG-8230• VG-8235• VG-8235F• VG-8240• Videopac G7000/C52• VIP64 (SX64 PAL), Swedish Expansion Kit• VZ 2000 (Oceania)• CPS Changer - Tenchi Wo Kurau II (Japan 921031)• X-07• Sharp X1• X1 Turbo (CZ-862C)• XOR S-100-12• YIS503IIR (Russian)• YIS503IIR (Estonian)• YC-64• YIS303• YIS503• YIS503II• Z1013 (matrix 8x4)• Z1013 (matrix 8x8)• SuperSport• ZRT-80• ZSBC-3• Zvezda• ZX-80• Sinclair ZX81• Aamber Pegasus• Amstrad CPC• Apogee BK-01• Data Applications International DAI• Dream 6800• EACA Colour Genie EG2000• Elektronika Inzenjering Galaxy• Epson PX4• Kaypro II• MSX• MSX2• Osborne 1• Pel Varazdin Orao• Sam Coupe• Sharp X1• Sinclair ZX-81• Sord M5• Tatung Einstein• Tesla SAPI-1 ZPS 1• Texas Instruments 99 4/a• UT88 Kit Computer• ZX Spectrum• CCE MC-1000•

Do you want to help, or learn more about how JSMESS is being done?

If you're a developer or want to contribute code or coding to the effort, you'd do best to go over to the Wiki page and read up about all the involved issues to get it to compile, and what's needed. We also have a github page for the project here.

Javascript MESS is the result of work by Justin de Vesine, Alon Zakai, John Vilk, Andre D, Justin Kerk, Vitorio Miliano, Boris Gjenero, Katelyn Gadd and Jason Scott.
Javascript MESS is a port of the MESS project and is not directly affiliated with them.