vulgarlang.com

Vulgarlang is designed for fantasy writers and role players who need a constructed language (conlang) for a fictional people or setting. It generates a language from phonological, grammatical, and vocabulary rules rather than translating between existing languages, so it fits worldbuilding tasks like naming a race, writing in-world phrases, or giving a campaign setting its own speech. It is not a natural-language learning tool and not a general translation service.

The two core audiences

Fantasy writers

If you are writing a novel or series and need a language that feels consistent across chapters, Vulgarlang is built for that. The generator models the rules, irregularities, and quirks of real languages across grammar, sounds, and vocabulary, which means the output can hold together as a system instead of being a random word list.

Practical uses include:

• Naming places, characters, and factions with a shared sound.
• Producing in-world dialogue or inscriptions that follow the same patterns.
• Keeping a reference vocabulary so later chapters match earlier ones.

Role players

For tabletop or live role play, the appeal is speed. The site describes creating a unique language for your race of peoples "in the click of a button," which suits a game master who needs something usable before the next session rather than a fully documented grammar.

Typical tasks:

• Give each faction or species a distinct sound.
• Generate a short vocabulary for place names and NPC names.
• Add flavour text or chants that players will hear but not need to learn.

What it is not

Vulgarlang is a conlang generator, not a translation tool and not a language-learning product. It does not teach you an existing natural language, and it does not convert text between languages you already speak. Its output is a new constructed language built from the parameters you set.

Other people who get value from it

The site also supports analysing the word structure of your own language, using reference profiles such as Arabic, Dutch, English, Finnish, French, German, Hawaiian, Hebrew, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Latin, Mandarin, Mongolian, Persian, Portuguese, Russian, Spanish, Swahili, Swedish, Turkish, Welsh, and Zulu. That makes it useful to:

• Conlangers who want a starting point modelled on a real language's phonology.
• Linguistics hobbyists who want to inspect syllable and phoneme patterns.
• Anyone who needs IPA-based output, since the tool uses the International Phonetic Alphabet and related terminology.

How to tell if it fits your need

A note on scope and access

The demo version produces a 200-word output. Signing up gives a 4,000-word vocabulary and extra features. If your project needs only a handful of names and phrases, the demo may be enough to judge whether the generated sound suits your world. If you need a working vocabulary you can draw on repeatedly, the larger output is the relevant tier.

The practical test is simple: generate one language, read the sample words aloud, and ask whether that sound matches the people you are writing or running. If it does, the tool is aimed at you.

Vulgarlang is a constructed language (conlang) generator aimed at fantasy writers and role players. It builds a unique language for a fictional people in one click, modelling the rules, irregularities and quirks of real languages across grammar, sounds and vocabulary. You can try the demo with a 200-word output; signing up unlocks a 4,000-word vocabulary and extra features.

Who it is for

• Fantasy writers who need consistent names, phrases and dialogue for a culture rather than ad-hoc invented words.
• Role players building a race or region that needs its own sound and grammar.
• Anyone who wants a language that behaves like a real one — with sound changes, stress patterns and irregularity — instead of a random word list.

What it generates

The generator covers several layers of a language at once:

It uses the International Phonetic Alphabet (IPA) and standard linguistic terminology, so the output is precise enough to reason about rather than just decorative.

How a language gets built

1. Set the sounds. Enter custom phonemes separated by spaces, using IPA symbols only, or let the generator add random phonemes to your selection.
2. Shape word structure. Set the maximum consonants before and after a vowel, or go advanced and define permissible consonants and clusters for word-initial, mid-word and word-final positions.
3. Add structure rules. Choose phoneme classes, word patterns and affix patterns; these drive the randomly generated affixes.
4. Tune probabilities. Adjust phoneme frequencies (fast dropoff, medium dropoff or equiprobable) and vowel probabilities at the start and end of words.
5. Apply sound changes and stress. Decide whether sound changes appear in spelling, and pick a stress pattern.
6. Generate. The result is a language with vocabulary and grammar consistent with the rules you set.

You can also analyse the word structure of your own language and use it as a starting point, and there are presets modelled on real languages including Arabic, Dutch, English, Finnish, French, German, Hawaiian, Hebrew, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Latin, Mandarin, Mongolian, Persian, Portuguese, Russian, Spanish, Swahili, Swedish, Turkish, Welsh and Zulu.

Demo vs. signup

• Demo: trial the generator with a 200-word output.
• Signup: 4,000-word vocabulary plus extra features, including the ability to change the stress pattern in the full version.

The site links to a signup page for the paid tier, so treat the full feature set as a paid option rather than assuming it is free.

Practical notes

• Because the tool uses IPA, it helps to be comfortable with phonetic symbols — or to lean on the real-language presets and adjust from there.
• Vowel harmony and illegal-combination rules are what stop output from feeling random; they are worth setting even if you leave most other options at default.
• If you only need a handful of names, the 200-word demo may be enough. If you need a working vocabulary for a novel or campaign, the larger tier is the relevant one.

Vulgarlang models the phonology, grammar, vocabulary, and irregular quirks of natural languages, and it lets you anchor a generated conlang to the word structure of a real reference language. According to the site's own description, it "models the rules, irregularities and quirks of real languages: from grammar, to sounds, to vocabulary." That means the output is not just a random letter generator — it tries to behave like a language with consistent internal logic. The main caveat: the demo caps output at 200 words, while signing up unlocks a 4,000-word vocabulary and extra features.

Sounds and phonology

This is where Vulgarlang leans hardest on real linguistic structure.

• IPA-based input. Custom phonemes are entered as IPA symbols separated by spaces, and you can toggle "Show IPA symbols." The tool explicitly states it "uses the International Phonetic Alphabet (IPA) and various other linguistic terminology."
• Consonant and vowel inventories. You define consonants and vowels directly, or let the generator add random phonemes to your custom selection.
• Syllable and word structure rules. You set max consonants before and after a vowel (1–3 each), plus word-initial, mid-word, and word-final consonants and clusters.
• Vowel harmony. A dedicated option adds vowel harmony, with a second vowel group so each word draws vowels from one group or the other — the same kind of constraint found in Turkish, Finnish, and Hungarian.
• Phoneme frequencies. Choose fast dropoff, medium dropoff, or equiprobable, which mirrors how real languages favour some sounds over others.
• Illegal combinations. Ban the same vowel twice in a row, or the same syllable twice in a row.
• Vowel probabilities and tones. Set the rough likelihood of a vowel at the start or end of a word, and apply tone (extra high through extra low, plus rising and falling) represented with tone letters, superscript numbers, or diacritics.
• Sound changes. You can reflect sound changes in spelling, show changes in square brackets, and remove the forward slashes around IPA.

Grammar, stress, and morphology

• Stress patterns. Choose initial, second, antepenult, penultimate, or ultimate stress, or select a predictable pattern, no stress, or no fixed stress. The site notes the stress pattern can be changed in the full version.
• Feet. A foot is defined as a group of 2 or 3 syllables, which is the unit real stress systems are built on.
• Affix patterns. You define affix patterns that the generator then uses to create randomly generated affixes — the basis for morphology rather than fixed word lists.
• Word and phoneme patterns. Phoneme classes, word patterns, and affix patterns are all configurable, so the grammar layer is rule-driven rather than a lookup table.

Vocabulary and reference languages

Vocabulary generation is tied to the word-structure rules above, so words inherit the phonotactics you set. The demo produces up to 200 words; a signup account raises this to a 4,000-word vocabulary with extra features.

For grounding, Vulgarlang offers a reference list of real languages whose word structure you can analyse and borrow from:

Arabic, Dutch, English, Finnish, French, German, Hawaiian, Hebrew, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Latin, Mandarin, Mongolian, Persian, Portuguese, Russian, Spanish, Swahili, Swedish, Turkish, Welsh, and Zulu.

You can also analyse the word structure of your own language. Selecting a reference is the fastest way to get natural-feeling phonotactics without hand-specifying every cluster.

What this means in practice

If you want a language that sounds like it belongs to a real family, the reference-language analysis plus vowel harmony, stress, and illegal-combination rules do most of the work. If you want something deliberately alien, you can switch off those constraints and set custom phonemes and clusters by hand.

The trade-off is depth versus access: the demo is enough to test whether the phonology and word-shape settings produce something you like, but the 4,000-word vocabulary and features like changing the stress pattern sit behind signup.

Vulgarlang lets you customize a generated conlang through four option groups — Phonology, Spelling, Vocabulary, and Grammar — plus a set of advanced controls for word structure, sound changes, and stress. You can enter your own phonemes as IPA symbols separated by spaces, set consonant and vowel limits before and after vowels, define permissible consonant clusters by word position, and adjust phoneme frequencies, illegal combinations, vowel probabilities, tones, and stress patterns. The demo version outputs up to 200 words; a signup raises the vocabulary to 4000 words and unlocks extra features.

Start with the core option groups

After generating a language (or clearing a loaded one), the interface exposes these groups:

• Phonology — the sound inventory and how sounds combine.
• Spelling — how those sounds are written.
• Vocabulary — the word stock.
• Grammar — the rules and irregularities the generator models.

The generator is built to imitate the rules, irregularities, and quirks of real languages across grammar, sounds, and vocabulary, so changes you make in one area carry through to the output.

Set custom phonemes

Use Custom phonemes to define your own sound inventory. Enter phonemes separated by spaces, using IPA symbols only. The field is split into Consonants and Vowels, and you can toggle Show IPA symbols if you need a reference while typing.

Two related controls sit alongside this:

• Add random phonemes to custom selection (upon generation) — lets the generator supplement your list.
• Max consonants before vowel / after vowel — each offers 1, 2, or 3, capping how heavy a syllable can get.

If you would rather not hand-pick sounds, you can analyse word structure of your own language or load a preset from the list (Arabic, Dutch, English, Finnish, French, German, Hawaiian, Hebrew, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Latin, Mandarin, Mongolian, Persian, Portuguese, Russian, Spanish, Swahili, Swedish, Turkish, Welsh, Zulu) as a starting point.

Control word structure

The Word structure section is where you define what combinations are legal. Note that using Advanced turns off the Custom Phonemes option above, so decide which route you want before filling it in.

In Advanced you specify permissible consonants and consonant clusters by position:

• Word initial consonants
• Mid-word consonants
• Word final consonants
• Vowels
• 2nd vowel group — add different vowels here and each word draws from one group or the other. This is how you set up vowel harmony (there is a dedicated + vowel harmony control and an explanation link).

You also get pattern fields for Phoneme Classes, Word Patterns, and Affix Patterns. Affix patterns are used for randomly generated affixes, so they shape how words inflect rather than just how they sound.

Tune frequencies, probabilities, and tones

These settings decide how often each option actually appears in the output:

For tones, the available values are extra high, high, mid, low, extra low, rising, and falling. You choose how tone is represented: tone letters, superscript numbers, or diacritics.

Apply sound changes and stress

Sound changes has two display toggles: Reflect sound changes in spelling and Show changes in [square brackets]. There is also Remove forward slashes around IPA if you prefer output without the slash notation.

Stress pattern determines which syllable is stressed. The options are:

• Initial — first syllable
• Second — second syllable
• Antepenult — third-last syllable
• Penultimate — second-last syllable
• Ultimate — last syllable
• Predictable pattern, No stress, or No fixed stress

A note in the interface defines a foot as a group of 2 or 3 syllables, which matters if you are reasoning about stress placement. Change stress pattern is listed as a full-version feature, so expect it to be locked in the demo.

Verify your result

Generate a new language after each change and read the output against what you set. Practical checks:

1. Confirm your custom IPA phonemes actually appear and that no banned combinations (same vowel twice, same syllable twice) show up.
2. Check that consonant clusters only occur in the positions you permitted.
3. If you set vowel harmony, confirm each word uses vowels from a single group.
4. Look at the stress marking and tone representation to be sure they match your chosen format.

The 200-word demo cap is enough to sanity-check phonology and word shape; the 4000-word vocabulary after signup is what you need to judge whether the affix patterns and grammar hold up across a larger sample.

Common sticking points

• Advanced overrides Custom Phonemes. If your hand-entered phonemes seem ignored, check whether Advanced word structure is active.
• IPA only. Non-IPA characters in the phoneme field will not be interpreted as intended.
• Spaces separate phonemes. A missing space merges two sounds into one entry.
• Some controls are version-gated. Stress pattern changes and the larger vocabulary are tied to the full version, so plan your workflow around what the demo exposes.

The core difference is output size and feature access. Vulgarlang's demo lets you generate a language with a 200-word output, while signing up expands that to a 4,000-word vocabulary plus extra features. Both run on the same core generator, so the underlying language rules, sounds, and grammar model don't change between them — what changes is how much vocabulary you get and which controls you can use.

Side-by-side comparison

What the demo is good for

If you only need a taste of how Vulgarlang handles phonology, spelling, vocabulary, and grammar, the 200-word demo is enough to judge whether the output style fits your world. It's a reasonable way to test a phoneme set or check how the generator handles a specific sound inventory before committing.

A 200-word list is thin for actual writing, though. It won't cover the range you'd need for naming places, characters, and objects across a novel or campaign.

What signing up adds

The signup tier raises the vocabulary ceiling to 4,000 words and unlocks extra features. The page doesn't enumerate every extra feature, so treat the specific extras as something to confirm on the signup page rather than assume. What's clear from the source is the vocabulary jump and the presence of additional functionality beyond the demo.

For fantasy writers and role-players building a language for a race or region, 4,000 words is the difference between a sample and a working lexicon.

Which should you pick?

• Choose the demo if you're evaluating Vulgarlang, want to test a phoneme inventory, or only need a small set of words for a one-off.
• Choose signup if you're committing to a language for a longer project and need enough vocabulary to actually use it in writing or play.

Both share the same generator, so your decision comes down to output volume and feature access, not language quality.