List of codes for Greek and Coptic characters
As far as I've gotten:
| Character | HTML code | Numeric code | Hex code | Description |
| α | α | α | α | Greek lowercase alpha |
| β | β | β | β | Greek lowercase beta |
| γ | γ | γ | γ | Greek lowercase gamma |
| δ | δ | δ | δ | Greek lowercase delta |
| ε | ε | ε | ε | Greek lowercase epsilon |
| ζ | ζ | ζ | ζ | Greek lowercase zeta |
| η | η | η | η | Greek lowercase eta |
| θ | θ | θ | θ | Greek lowercase theta |
| ι | ι | ι | ι | Greek lowercase iota |
| κ | κ | κ | κ | Greek lowercase kappa |
| λ | λ | λ | λ | Greek lowercase lambda |
| μ | μ | μ | μ | Greek lowercase mu |
| ν | ν | ν | ν | Greek lowercase nu |
| ξ | ξ | ξ | ξ | Greek lowercase xi |
| ο | ο | ο | ο | Greek lowercase omicron |
| π | π | π | π | Greek lowercase pi |
| ρ | ρ | ρ | ρ | Greek lowercase rho |
| ς | ς | ς | ς | Greek lowercase final sigma |
| σ | σ | σ | σ | Greek lowercase sigma |
| τ | τ | τ | τ | Greek lowercase tau |
| υ | υ | υ | υ | Greek lowercase upsilon |
| φ | φ | φ | φ | Greek lowercase phi |
| χ | χ | χ | χ | Greek lowercase chi |
| ψ | ψ | ψ | ψ | Greek lowercase psi |
| ω | ω | ω | ω | Greek lowercase omega |
| Α | Α | Α | Α | Greek uppercase alpha |
| Β | Β | Β | Β | Greek uppercase beta |
| Γ | Γ | Γ | Γ | Greek uppercase gamma |
| Δ | Δ | Δ | Δ | Greek uppercase delta |
| Ε | Ε | Ε | Ε | Greek uppercase epsilon |
| Ζ | Ζ | Ζ | Ζ | Greek uppercase zeta |
| Η | Η | Η | Η | Greek uppercase eta |
| Θ | Θ | Θ | Θ | Greek uppercase theta |
| Ι | Ι | Ι | Ι | Greek uppercase iota |
| Κ | Κ | Κ | Κ | Greek uppercase kappa |
| Λ | Λ | Λ | Λ | Greek uppercase lambda |
| Μ | Μ | Μ | Μ | Greek uppercase mu |
| Ν | Ν | Ν | Ν | Greek uppercase nu |
| Ξ | Ξ | Ξ | Ξ | Greek uppercase xi |
| Ο | Ο | Ο | Ο | Greek uppercase omicron |
| Π | Π | Π | Π | Greek uppercase pi |
| Ρ | Ρ | Ρ | Ρ | Greek uppercase rho |
| Σ | Σ | Σ | Σ | Greek uppercase sigma |
| Τ | Τ | Τ | Τ | Greek uppercase tau |
| Υ | Υ | Υ | Υ | Greek uppercase upsilon |
| Φ | Φ | Φ | Φ | Greek uppercase phi |
| Χ | Χ | Χ | Χ | Greek uppercase chi |
| Ψ | Ψ | Ψ | Ψ | Greek uppercase psi |
| Ω | Ω | Ω | Ω | Greek uppercase omega |
| Ͱ | Ͱ | Ͱ | Greek uppercase heta | |
| ͱ | ͱ | ͱ | Greek lowercase heta | |
| Ͳ | Ͳ | Ͳ | Greek uppercase archaic sampi | |
| ͳ | ͳ | ͳ | Greek lowercase archaic sampi | |
| ʹ | ʹ | ʹ | Greek numeral sign | |
| ͵ | ͵ | ͵ | Greek lower numeral sign | |
| Ͷ | Ͷ | Ͷ | Greek uppercase Pamphylian digamma | |
| ͷ | ͷ | ͷ | Greek lowercase Pamphylian digamma | |
| ͺ | ͺ | ͺ | Greek YPOGEGRAMMENI | |
| ͻ | ͻ | ͻ | Greek lowercase reversed lunate sigma symbol | |
| ͼ | ͼ | ͼ | Greek lowercase dotted lunate sigma symbol | |
| ͽ | ͽ | ͽ | Greek lowercase reversed dotted lunate sigma symbol | |
| ; | ; | ; | Greek question mark | |
| ΄ | ΄ | ΄ | Greek tonos | |
| ΅ | ΅ | ΅ | Greek dialytika tonos | |
| Ά | Ά | Ά | Greek uppercase alpha with tonos | |
| · | · | · | Greek ANO TELEIA | |
| Έ | Έ | Έ | Greek uppercase epsilon with tonos | |
| Ή | Ή | Ή | Greek uppercase eta with tonos | |
| Ί | Ί | Ί | Greek uppercase iota with tonos | |
| Ό | Ό | Ό | Greek uppercase omicron with tonos | |
| Ύ | Ύ | Ύ | Greek uppercase upsilon with tonos | |
| Ώ | Ώ | Ώ | Greek uppercase omega with tonos | |
| ΐ | ΐ | ΐ | Greek lowercase iota with dialytika and tonos | |
| Ϊ | Ϊ | Ϊ | Greek uppercase iota with dialytika | |
| Ϋ | Ϋ | Ϋ | Greek uppercase upsilon with dialytika | |
| ά | ά | ά | Greek lowercase alpha with tonos | |
| έ | έ | έ | Greek lowercase epsilon with tonos | |
| ή | ή | ή | Greek lowercase eta with tonos | |
| ί | ί | ί | Greek lowercase iota with tonos | |
| ΰ | ΰ | ΰ | Greek lowercase upsilon with dialytika and tonos | |
| ϊ | ϊ | ϊ | Greek lowercase iota with dialytika | |
| ϋ | ϋ | ϋ | Greek lowercase upsilon with dialytika | |
| ό | ό | ό | Greek lowercase omicron with tonos | |
| ύ | ύ | ύ | Greek lowercase upsilon with tonos | |
| ώ | ώ | ώ | Greek lowercase omega with tonos | |
| Ϗ | Ϗ | Ϗ | Greek uppercase kai symbol | |
| ϐ | ϐ | ϐ | Greek Beta symbol | |
| ϑ | ϑ | ϑ | ϑ | Greek theta symbol |
| ϒ | ϒ | ϒ | ϒ | Greek upsilon with hook symbol |
| ϓ | ϓ | ϓ | Greek upsilon with acute and hook symbol | |
| ϔ | ϔ | ϔ | Greek upsilon with diaeresis and hook symbol | |
| ϕ | ϕ | ϕ | ϕ | Greek phi symbol |
| ϖ | ϖ | ϖ | ϖ | Greek pi symbol |
| ϗ | ϗ | ϗ | Greek kai symbol | |
| Ϙ | Ϙ | Ϙ | Greek letter archaic koppa | |
| ϙ | ϙ | ϙ | Greek lowercase archaic koppa | |
| Ϛ | Ϛ | Ϛ | Greek letter stigma | |
| ϛ | ϛ | ϛ | Greek lowercase stigma | |
| Ϝ | Ϝ | Ϝ | Ϝ | Greek letter digamma |
| ϝ | ϝ | ϝ | ϝ | Greek lowercase digamma |
| Ϟ | Ϟ | Ϟ | Greek letter koppa | |
| ϟ | ϟ | ϟ | Greek lowercase koppa | |
| Ϡ | Ϡ | E0; | Greek letter sampi | |
| ϡ | ϡ | ϡ | Greek lowercase sampi | |
| Ϣ | Ϣ | Ϣ | Coptic uppercase shei | |
| ϣ | ϣ | ϣ | Coptic lowercase shei | |
| Ϥ | Ϥ | Ϥ | Coptic uppercase fei | |
| ϥ | ϥ | ϥ | Coptic lowercase fei | |
| Ϧ | Ϧ | Ϧ | Coptic uppercase khei | |
| ϧ | ϧ | ϧ | Coptic lowercase khei | |
| Ϩ | Ϩ | Ϩ | Coptic uppercase hori | |
| ϩ | ϩ | ϩ | Coptic lowercase hori | |
| Ϫ | Ϫ | Ϫ | Coptic uppercase gangia | |
| ϫ | ϫ | ϫ | Coptic lowercase gangia | |
| Ϭ | Ϭ | Ϭ | Coptic uppercase shima | |
| ϭ | ϭ | ϭ | Coptic lowercase shima | |
| Ϯ | Ϯ | Ϯ | Coptic uppercase dei | |
| ϯ | ϯ | ϯ | Coptic lowercase dei | |
| ϰ | ϰ | ϰ | ϰ | Greek kappa symbol |
| ϱ | ϱ | ϱ | Greek rho symbol | |
| ϲ | ϲ | ϲ | Greek lunate sigma symbol | |
| ϳ | ϳ | ϳ | Greek letter yot | |
| ϴ | ϴ | ϴ | Greek uppercase theta symbol | |
| ϵ | ϵ | ϵ | ϵ | Greek lunate epsilon symbol |
| ϶ | ϶ | ϶ | ϶ | Greek reversed lunate epsilon symbol |
| Ϸ | Ϸ | Ϸ | Greek uppercase sho | |
| ϸ | ϸ | ϸ | Greek lowercase sho | |
| Ϲ | Ϲ | Ϲ | Greek uppercase lunate sigma symbol | |
| Ϻ | Ϻ | Ϻ | Greek uppercase san | |
| ϻ | ϻ | ϻ | Greek lowercase san | |
| ϼ | ϼ | ϼ | Greek rho with stroke symbol | |
| Ͻ | Ͻ | Ͻ | Greek uppercase reversed lunate sigma symbol | |
| Ͼ | Ͼ | Ͼ | Greek uppercase dotted lunate sigma symbol | |
| Ͽ | Ͽ | Ͽ | Greek uppercase reversed dotted lunate sigma symbol |