This was originally posted on https://fasforward.com/list-of-european-special-characters/, therefore in English.

Working on a german project with dynamic Textfields or forms is no problem for me: there are six “Umlaute” and one ligature, that I use every day. English forms are even easier: no special characters at all (how unimaginative ;-)…
But at the moment the project’s scope is widened to East- or West-Europe, problems begin if you weren’t attentive in school: In Spanish questions start with this upsidedown questionmark, don’t they? In French there are accents, but what directions and on which letters? And does anyone had Czech or Hungarian in school?

This is for all developers, making forms or dynamic textfields for the western hemisphere (no Cyrillic or Greek characters).

¡¿·
ÄäÀàÁáÂâÃãÅåǍǎĄąĂăÆæĀā
ÇçĆćĈĉČč
ĎđĐďð
ÈèÉéÊêËëĚěĘęĖėĒē
ĜĝĢģĞğ
Ĥĥ
ÌìÍíÎîÏïıĪīĮį
Ĵĵ
Ķķ
ĹĺĻļŁłĽľĿŀ
ÑñŃńŇňŅņ
ÖöÒòÓóÔôÕõŐőØøŒœ
ŔŕŘř
ẞߌśŜŝŞşŠšȘș
ŤťŢţÞþȚț
ÜüÙùÚúÛûŰűŨũŲųŮůŪū
Ŵŵ
ÝýŸÿŶŷ
ŹźŽžŻż

Thanks to:
Stefan, for Croatian đ and Đ.
G, for Hungarian letters őŐ and űŰ
codebuilder, for ď, ģ, ì, Ï, ì, Ø and ť
David for Åå (Sweden)
Andrzej for ŻżĄąĘę (Poland)
Cosmin for Ţţ Ăă (Romania)
NA for Ææ (Danish)
Dave for ð, þ, and Þ (Icelandic)
Fabien for Π(French)
Peter for Ľľ (Slovakia) and Ůů (Czeck)
cosku for Ğğ and ı (Turkish) – yes, let’s count Turkey to Europe 😉
Alex for pointing out the T and S with comma and cedilla.
Candid for the “Baltic package” Āā, Ėė, Ēē, Īī, Įį, Ņņ and Ūū.
Unnamed for mentioning the combination of Ŀŀ in Catalan.

Thank you kyrastas4 for pointing out that the title “Complete List” isn’t sufficient for European non-latin alphabets. Changed the title.