The next time you use one, check how it handles the word (Difficult). If it breaks the conjunct ठी into two separate letters, close the tab and find a better converter. Your language deserves the precision of Unicode, not the guesswork of glyphs.
Before converting a large manuscript, convert a small paragraph containing the 10 most common conjuncts (क्र, ग्र, प्र, त्र, ज्ञ, श्र, क्त, द्ध, द्व, ह्म). Compare the output to a standard Marathi dictionary. If it passes that test, it will likely pass the rest. marathi unicode converter
Instead of the graceful curves of the Devanagari script for "नमस्कार" (Namaskar), you see something like fgekLdkj . This is not a secret code. It is the ghost of pre-Unicode computing. The next time you use one, check how