Libraries with Free WiFi in San Francisco, CA
There are 48 libraries on our San Francisco WiFi map. Examples include Excelsior Branch Library, Ingleside Branch Library and Marina Branch Library. 6 (13%) are explicitly marked as free WiFi.
Venue data © OpenStreetMap contributors, available under the Open Database License. Snapshot taken September 15, 2026. Listings show places mapped as offering internet access, plus public libraries, hotels, and chains that advertise free customer WiFi (marked Chain policy, since the policy is not confirmed at each location). WiFi terms change, so confirm with the venue. VoqadoWiFi does not publish network passwords.
All 48 libraries in San Francisco
| Venue | Address | WiFi |
|---|---|---|
| Anne Bremer Memorial Library | See map | Library |
| Anza Branch Library | 550 37th Avenue, 94121 | Library |
| Bayview Branch Library | 5075 3rd Street, 94124 | Listed |
| Bernal Heights Branch Library Hours: Mo,Th 10:00-18:00; Tu 10:00-19:00; We 12:00-20:00; Fr 13:00-18:00; Sa 10:00-18:0 | 500 Cortland Avenue, 94110 | Listed |
| Chinatown / Him Mark Lai Branch Library Hours: Su 13:00-17:00; Mo,Fr 13:00-18:00; Tu-Th 10:00-20:00; Sa 10:00-18:00; PH off | 1135 Powell Street, 94108 | Listed |
| Christian Science Reading Room | 220 West Portal Avenue, 94127 | Library |
| Dorraine Zief Law Library | Fulton Street, 94117 | Library |
| Erik Erikson Library | See map | Library |
| Eureka Valley / Harvey Milk Memorial Branch Library Hours: Mo,Sa 10:00-18:00; Tu-Th 10:00-20:00; Fr 13:00-18:00; Su 13:00-17:00 | 1 José Sarria Court, 94114 | Listed |
| Excelsior Branch Library Hours: Su 13:00-17:00; Mo 13:00-18:00; Tu-Th 10:00-20:00; Fr 13:00-18:00; Sa 10:00-18:0 | 4400 Mission Street, 94112 | Free |
| Far West Library for Educational Research and Development | See map | Library |
| Geography Department Map Library | See map | Library |
| Glen Park Branch Library Hours: Tu-Sa 10:00-17:30 | 2825 Diamond Street, 94131 | Listed |
| Golden Gate Valley Branch Library | 1801 Green Street, 94123 | Library |
| Helen Crocker Russell Horticultural Library Hours: Mo-Th off; Fr-Su 10:00-16:00 | See map | Library |
| Ingleside Branch Library Hours: Mo,Tu 10:00-18:00; We 10:00-20:00; Th 12:00-19:00; Fr 13:00-18:00; Sa 10:00-18:0 | 1298 Ocean Avenue, 94112 | Free |
| Internet Archive Hours: Mo-Fr 09:00-17:00 | 300 Funston Avenue, 94118 | Listed |
| J. Paul Leonard Library | See map | Library |
| Kalmanovitz Library Hours: Mo-Th 07:45-22:00; Fr 07:45-20:00; Sa 10:00-18:00; Su 12:00-22:00 | 530 Parnassus Avenue, 94143 | Library |
| Marina Branch Library | 1890 Chestnut Street, 94123 | Free |
| Maritime Research Center Hours: "by appointment", 13:00-16:30 | 2 Marina Boulevard, 94109 | Library |
| Mechanics' Institute Library and Chess Room Hours: Mo,We,Fr 10:00-18:00; Tu,Th 10:00-20:00; Sa 10:00-17:00 | 57 Post Street, 94104 | Library |
| Merced Branch Library | 155 Winston Drive, 94132 | Listed |
| Mission Bay Branch Library Hours: Mo-Tu,Th,Sa 10:00-18:00; We 11:00-20:00; Fr 13:00-18:00; Su 13:00-17:00 | 960 4th Street, 94158 | Free |
| Mission Temporary Branch, San Francisco Public Library Hours: Mo,Sa 10:00-18:00; Tu-Th 10:00-20:00; Fr 13:00-18:00; Su 13:00-17:00 | 1234 Valencia Street | Free |
| Noe Valley / Sally Brunn Branch Library | 451 Jersey Street, 94114 | Listed |
| North Beach Branch Library | 850 Columbus Avenue, 94133 | Library |
| Ocean View Branch Library | 345 Randolph Street, 94132 | Listed |
| Ortega Branch Library Hours: Mo,Tu,Sa 10:00-18:00; Su 13:00-17:00; We 12:00-20:00; Th 11:00-20:00; Fr 13:00-1 | 3223 Ortega Street, 94122 | Listed |
| Park Branch Library Hours: Th, Sa 10:00-18:00; Mo 11:00-18:00; Tu 10:00-20:00; We 12:00-20:00; Fr 13:00-18: | 1833 Page Street, 94117 | Listed |
| Parkside Branch Library | 1200 Taraval Street, 94116 | Listed |
| Portola Branch Library Hours: Mo-Tu,Sa 10:00-18:00; We 12:00-20:00; Th 10:00-19:00; Fr 13:00-18:00; Su 13:00-1 | 380 Bacon Street, 94134 | Listed |
| Potrero Branch Library | 1616 20th Street, 94107 | Listed |
| Prelinger Library Hours: Tu 11:00-17:00; We 12:30-19:00; Su 13:30-16:00 | 301 8th Street, 94103 | Listed |
| Presidio Branch Library Hours: Tu-We 10:00-20:00; Mo, Fr 13:00-18:00; Th, Sa 10:00-18:00; Su 13:00-17:00 | 3150 Sacramento Street, 94115 | Listed |
| Richard A Gleeson Library | Golden Gate Avenue, 94117 | Free |
| Richmond / Senator Milton Marks Branch Library | 351 9th Avenue, 94118 | Listed |
| Richmond Branch, San Francisco Public Library Hours: Mo 10:00-18:00; Tu-Th 10:00-20:00; Fr 13:00-18:00; Sa 10:00-18:00; Su 13:00-17:0 | 351 9th Avenue, 94118 | Listed |
| Salesforce Park Children’s Reading Room Hours: Mo-Fr 10:00-18:00; Sa-Su 10:00-16:00; PH off | See map | Library |
| San Francisco Public Library, Main Library Hours: Su 12:00-18:00; Mo 09:00-18:00; Tu-Th 09:00-20:00; Fr 12:00-18:00; Sa 10:00-18:0 | 100 Larkin Street, 94102 | Listed |
| Simpson Library | See map | Library |
| St Francis Memorial Hospital Library | See map | Library |
| Sunset Branch Library | 1305 18th Avenue, 94122 | Library |
| Treasure Island Bookmobile Hours: We 14:00-18:00 | 810 Avenue D | Library |
| USF Seed Library | See map | Library |
| Visitacion Valley Branch Library | 201 Leland Avenue, 94134 | Listed |
| West Portal Branch Library Hours: Mo,Sa 10:00-18:00; Tu-Th 10:00-20:00; Fr 13:00-18:00; Su 13:00-17:00 | 190 Lenox Way, 94127 | Listed |
| Western Addition Branch Library | 1550 Scott Street, 94115 | Library |
Questions
How many libraries have WiFi in San Francisco?
48 on the OpenStreetMap snapshot taken September 15, 2026: 27 tagged with internet access and 21 libraries. 6 are explicitly marked free and 23 list opening hours.
Can I work all day from a library in San Francisco?
Libraries are the best fit for a long session: quiet, free and no purchase needed. Some ask for a library card or limit guest sessions, so check at the desk on your first visit. 6 of the 48 libraries in San Francisco are marked free in OpenStreetMap, so start with those. 23 list their opening hours.
Is public WiFi in San Francisco safe to use?
Library networks are usually open, with no password, so anyone nearby can join. Confirm the network name with staff before you join, because a look alike network name is a common trick. Stick to sites that load over HTTPS, and use a VPN for banking or work systems.
My business is in San Francisco and not listed. What do I do?
Add it to OpenStreetMap with internet_access=wlan (and internet_access:fee=no if your WiFi is free). It appears here the next time we refresh the San Francisco snapshot. If you run TP-Link Omada or Ubiquiti UniFi, the form on this page also starts a free sign in page for your guests.
More WiFi guides for San Francisco
Libraries with WiFi in nearby cities
WiFi maps near San Francisco
Your guests already use your WiFi. Ask the ones who agree if you can stay in touch.
VoqadoWiFi puts a branded sign in page on the TP-Link Omada or Ubiquiti UniFi access points you already own. Guests who tick a separate unticked marketing box join your email list, and every guest can reach the same Google review link, whatever they think of the visit.
- ✓Free plan, no card and no sales call
- ✓Works on Omada and UniFi hardware
- ✓Separate unticked marketing box on every login, CSV export
- ✓Missing or listed wrong? Fix it in OpenStreetMap and it updates at our next refresh
Get free guest WiFi marketing for your library
Start with your email. Next comes a free Starter account and the setup guide for your Omada or UniFi hardware.