Felo

Curse Word Substitution Translator Online

Turn ordinary English words and phrases into crude, profane equivalents using a fixed substitution list, with a clear log of every change. Unlike a plain two-box toy, it shows exactly which terms were swapped, preserves your capitalization, and can attempt a reverse lookup. Try it online.

What is Curse Word Substitution Translator Online?

Curse Word Substitution Translator Online is a text tool that takes ordinary English words, phrases and mild exclamations and swaps the ones on a fixed list for crude or profane equivalents. It is the conversational version of a classic two-box joke translator: you paste English, you get back the same text with selected terms replaced. The difference is transparency — every run also tells you which terms were changed, which were left alone, and how the replacement was cased.

It is meant for playful, informal use: joking with friends, writing deliberately edgy dialogue for a character, or seeing how a mild sentence reads once the listed words are swapped. It is not a grammar tool, not a translation service, and not a filter.

Key Features

Fixed paired-list substitution. A phrase list (multi-word expressions such as "a lot" or "go away") and a word list (single terms such as "heck", "wow" or "crap") are applied to your text. Anything not on either list passes through unchanged.
Deterministic matching order. This agent checks multi-word entries before single words, so "a whole lot" is handled as one unit rather than as "a lot" plus leftovers. The source page does not document its runtime matching order, so this ordering is this agent's own choice for predictable results.
Casing mirroring. This agent mirrors the casing of the matched input term onto the replacement: lowercase stays lowercase, title case stays title case, all-caps stays all-caps. The source page does not document case handling, so this is this agent's own rule.
Change log. After the converted text you get a short list of each replaced term and its replacement, plus a note on terms that were not in the list.
Reverse lookup (approximate). You can ask what a crude term maps back to. Because several mild words share one replacement, the reverse answer is a list of candidates, not a single guaranteed original.

How to Use

Paste or type your English text in the chat. A single sentence or a short paragraph both work.
Read the converted text in the copyable block. Below it, the change log shows each swap.
If you want the other direction, ask for a reverse lookup on a specific term, or ask for a lighter version if the result is stronger than you wanted.

Example Use Cases

Joking with a friend. You type "Wow, that movie sucks a lot" and get the substituted line back, ready to paste into a group chat.
Writing edgy character dialogue. You draft a line of dialogue for a crude fictional character and want the mild words pushed into stronger ones consistently, with a record of what changed so you can keep the voice stable across scenes.
Checking a phrase before sharing. You want to know whether a particular mild expression is even on the substitution list before you send a joke, so you ask for the change log and see which words were untouched.

Tips for Best Results

Keep input in plain English. The list is English-only; other languages pass through unchanged.
If a word you expected to change did not, it is probably not on the list — check the change log rather than assuming a bug.
Ask for the reverse lookup only when you accept that it returns candidates, since many mild words collapse into the same replacement.

FAQ

What input format does it accept?
Plain text, typed or pasted, from one word up to a few paragraphs. No files, images or audio are needed.

How accurate is the result?
It is exact for the fixed list: a listed term is replaced, an unlisted term is not. It is not a linguistic analysis and does not judge whether the output is appropriate for your context.

What does this agent add beyond the source page?
The source page is a two-box translator with no explanation of what changed. This agent returns the converted text plus a change log, a stated casing rule and an approximate reverse lookup, all in the conversation.

Can it translate back exactly?
No. The mapping is many-to-one in places, so reverse lookup returns possible originals rather than one certain answer.