ReSmush.it vs ShotOG

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%100%
P50 · ms462179
P95 · ms2901418
AuthnoneapiKey
CORSyesno
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseN/A — optimization service, not a datasetUnverified
Free tierFree; per-image size cap applies (see docs)Free tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ReSmush.it vs ShotOG: common questions

Which is more reliable, ReSmush.it or ShotOG?

On our scheduled checks, ReSmush.it leads on measured uptime — ReSmush.it at 100% versus ShotOG at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ReSmush.it or ShotOG?

ShotOG has the lower median latency in our checks — ReSmush.it responds in 462 ms versus ShotOG at 179 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do ReSmush.it and ShotOG need an API key?

ReSmush.it needs no key, while ShotOG requires a free API key. If you want to start calling without signup, reach for ReSmush.it first.

Can I call ReSmush.it and ShotOG from the browser?

Neither sends browser-friendly CORS headers reliably, so call ReSmush.it and ShotOG from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ReSmush.it and ShotOG free for commercial use?

ReSmush.it has unclear commercial terms, and ShotOG has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.