Felo

Ancient Greek Alphabet to English Letters Online

Convert Ancient Greek alphabet characters into Latin letters, or turn Latin letters back into Greek characters, one character at a time. It uses a fixed letter table, states which Greek letter it chose when a Latin letter is ambiguous, and lists any character it could not map. Try it online.

What is Ancient Greek Alphabet to English Letters Online?

This is a letter-by-letter converter for the Greek alphabet. You paste Greek characters and get Latin letters back, or you type Latin letters and get Greek characters back. It is a transliteration tool, not a translator: it does not know what the words mean, and it does not produce pronunciation, audio, or font files. Each character is replaced according to a fixed table, and everything else in your text stays where it is.

Key Features

Two directions in one place. Greek to Latin letters, or Latin letters to Greek characters. If you do not say which way you want, the agent detects the script of your input and tells you which direction it used.
Accented and polytonic forms covered. Letters such as ά, ἐ, ἕ, ῆ, ἡ, ἰ, ἱ, ί, ὀ, ό, ύ, ὐ, ὖ, ῳ and ώ are in the table and convert to the same Latin letters as their base forms.
A stated rule for reverse ambiguity. Several Greek letters map to the same Latin letter (a, e, i, o, s). When you convert Latin to Greek, the agent uses a fixed default for each and tells you which Greek letter it picked, so the result is predictable rather than random.
Nothing silently disappears. Spaces, punctuation, digits, and any character outside the table are kept as they are and listed in a short note, so you can see exactly what was not converted.
Optional character alignment. Ask for it and you get a side-by-side list showing which Greek letter produced which Latin output, useful for checking a difficult inscription or a name.

How to Use

Paste your text and say which direction you want, for example "Greek to English letters: ἀγορά". If you leave the direction out, the agent reads the script of your input and states its choice.
Read the converted text in the code block. It is plain text you can copy straight into a document, a spreadsheet, or a search box.
Check the short note underneath. It tells you the direction used, any reverse-ambiguity choices, and any characters that had no mapping.

Example Use Cases

Reading a Greek inscription or motto. You have a line of Ancient Greek alphabet characters from a coin, a building, or a book plate and want a rough Latin-letter reading you can sound out.
Greek alphabet to English letters for a name. You want to see how a Greek name such as Ἀλέξανδρος looks when each letter is swapped for its Latin equivalent, without pretending it is a translation.
English to Ancient Greek letters for a label. You want a decorative Greek-letter version of a short Latin word or initials for a design mock-up, and you need to know which Greek letters were chosen for ambiguous letters like o and s.

Tips for Best Results

Say the direction explicitly when your text is mixed or very short, since a single letter like "a" could be read either way.
Treat the output as a letter reading, not a translation. If you need meaning, this tool will not give it to you.
Keep the note about unmapped characters. If a symbol was skipped, that is usually a sign your source text used a character outside the standard table.

FAQ

What input can I give it?
Plain text in either script. Greek letters, including accented and polytonic forms, convert to Latin letters; Latin letters convert to Greek characters. Spaces, punctuation, and digits pass through unchanged. Very long passages are handled in one response, but extremely long text may be split across turns.

How accurate is the result?
It is exact for the characters in the table: each one is replaced by its fixed counterpart. It is not a translation and does not claim historical, dialectal, or pronunciation accuracy. Where a Latin letter could come from more than one Greek letter, the agent uses a stated default and tells you so, which means a Latin-to-Greek round trip may not return your original Greek spelling.

How is this different from some free text tools?
Some free text tools show two boxes and swap characters with no explanation of direction, ambiguity, or skipped symbols. This agent states the direction it used, names its choice for ambiguous reverse mappings, and reports any character it could not convert, so you can tell a real conversion from a silent gap.

Does it produce audio or a font?
No. The output is text only.