ChordGen
ChordGen is a free AI chord progression generator: describe a mood or genre in plain words, hear the result on an interactive piano, rearrange the chords, then export a standard MIDI file. No account required.
What is ChordGen?
ChordGen is a browser-based chord progression generator driven by a language model. Instead of picking a key, a scale and a mode from menus, you type what you are after, late-night drive, rainy day jazz, euphoric festival drop, bittersweet goodbye, set how many chords you want, and the harmony gets written around that description rather than filtered out of a preset list.
Each prompt returns three distinct progressions, every one taking a different angle on the same brief. The homepage publishes worked examples: warm nostalgic neo-soul yields Cmaj9, Am11, Fmaj7 and G13, while jazz in a minor yields Am7, Dm7, E7b9 and Am7. A comparison page shows melancholic lo-fi in A minor producing Am7, Fmaj7, Cmaj7 and G7, described as a i-bVI-bIII-bVII loop.
Every chord appears on a playable on-screen keyboard, so you hear and see how it is voiced before committing to it. Two actions sit beside each progression, one explaining how it is built, the other handing you the MIDI. Editing is direct: drag chords into a new order, swap out one you dislike, add or delete until the sequence sounds right, with the keyboard following along.
The export is a plain .mid file, free, unlimited, watermark-free and account-free. The site names Ableton Live, Logic Pro, FL Studio, Pro Tools, Cubase, GarageBand, Reaper, Studio One and Bitwig as destinations, since any DAW that reads MIDI will open it. Keys and genres are requested inside the prompt itself, and the exported file carries the correct pitches.
According to the FAQ, the engine is a large language model guided by music theory principles, genre conventions and harmonic analysis, with generated chords checked against known structures and voice-leading rules before they reach you. Four audiences are named on the homepage: songwriters, producers, instrumentalists and music students. The interface is responsive on phones and tablets, though the site recommends desktop for editing. The whole product is four pages wide, and its domain was registered on 23 March 2025.
What it does
- Turn a plain-language description of a mood, genre or reference into chord progressions
- Return three different progressions for the same prompt
- Play back every chord on an interactive on-screen piano
- Reorder, replace, add or delete chords by drag and drop
- Export the result as a standard .mid file, free and unlimited
- Honour a key or a genre named directly inside the prompt
- Explain how a generated progression is built
When to use ChordGen / When not to
A quick filter to help you decide if ChordGen is the right fit.
When to use ChordGen
- Songwriters who want a starting point built from a described feeling rather than from music theory
- Music producers who would rather drag a MIDI file into Ableton, FL Studio or Logic than draw chords note by note
- Instrumentalists hunting for voicings outside their usual reflexes, shown on a playable keyboard
- Music students studying how progressions behave across blues turnarounds, neo-soul extensions and film-score cues
- Independent creators who need chords cleared for commercial release without attribution
When not to use ChordGen
- Anyone expecting a finished track: ChordGen writes chords, not melodies, drums, arrangements or mixes
- Producers who need rendered audio or stems, since the only export is a standard .mid file
- Developers looking for an API, as no endpoint and no developer documentation are published
- Teams bound by a compliance review, because the site publishes no terms, no privacy policy and no DPA
- Users who want a native mobile app or offline access rather than a responsive web page
How to use ChordGen
A typical end-to-end flow, from setup to results.
- Open the generator page; there is nothing to install, nothing to pay and no account to create
- Type a description of the mood, genre or reference you are after, such as "melancholic jazz" or "upbeat pop anthem"
- Name a key inside the same sentence if you want one, for example "upbeat pop in G major"
- Set how many chords the progression should contain
- Generate, then read the three progressions returned for that prompt
- Play each chord on the interactive piano to hear how it sits
- Use the explain action if you want to understand how a progression is put together
- Drag chords into a new order, swap, add or delete until the sequence works
- Download the progression as a standard .mid file
- Drop the file into your DAW and carry on writing; the published walkthrough puts the whole loop at about two minutes
Pros & Cons
Pros
- Free in full: unlimited generations and downloads, no paid tier, no watermark
- No sign-up, so the tool is usable within seconds of landing on the page
- Plain-language input removes the music theory prerequisite
- Three variants per prompt leave room for an actual choice
- Audio and visual preview before export, on a keyboard you can play
- Manual editing keeps the writer in control of the final sequence
- Standard MIDI output, with commercial use explicitly allowed and no attribution required
Cons
- No terms, no privacy policy, no legal notice and no data processing agreement are published at all
- No legal entity, postal address or identifiable owner appears anywhere on the site
- Nothing is documented about retention, hosting or what becomes of the prompts you type
- Scope is narrow: chords only, with no melody, arrangement or rendered audio
- No API and no developer documentation for anyone wanting to automate the tool
- No native iOS or Android application, and an English-only interface
- Support runs through a single email address, with no published response commitment
Pricing & Plans
ChordGen is offered free of charge in its entirety. There is no paid plan, no subscription and no metered tier, so there is no lowest price point to report: the structured data published on the site declares the offer at 0 USD. Generation and MIDI downloads are described as unlimited, with no watermark and no account requirement. No pricing page exists, and no free trial applies, since there is no paid offering to trial.
- the only offering
- with unlimited prompts
- unlimited MIDI downloads
- no account and no watermark
- declared at 0 USD
Data, GDPR & hosting
A consolidated view of how ChordGen handles your data.
GDPR overview
There is no GDPR information of any kind. A search across the full text and the raw HTML of every collected page returns no mention of the GDPR, the CCPA, SOC 2 or ISO 27001. No privacy policy, no terms, no legal notice and no cookie policy exist: /privacy, /privacy-policy, /terms, /terms-of-service and /legal all return HTTP 404, and the sitemap declares only three public URLs. No Article 27 EU representative is named, no data protection officer is identified, and no privacy contact address is given. The tool is presented as usable without an account, which limits what could be collected at sign-up, but that is a product claim rather than a documented commitment. For a reader in the European Union, the absence of any published notice is the single most important fact here.
Who owns the data?
The site publishes no terms and conditions and no privacy policy: /terms, /legal and /privacy all return 404, and the sitemap declares only three public pages, so ownership is not governed by any contract a reader can consult. The single statement on the subject sits in the homepage FAQ, and it concerns output only: everything created with ChordGen belongs to the user, who may use it in commercial releases, sync licensing, client work or live performance, with no attribution required. Nothing is said about the prompts typed into the tool, about generated progressions held on the vendor's side, or about who may access either of them.
Reuse rights
On the output side the answer is explicit and permissive. The FAQ states that whatever you generate is yours and lists commercial releases, sync licensing, client work and live performance as allowed uses, without attribution and without any further request for permission. On the vendor's side, nothing is documented. No published text describes what happens to the prompts you type, whether progressions are stored, whether any of it feeds model training, or which third parties are involved. The FAQ explains the mechanism only, a large language model prompted with music theory principles, genre conventions and harmonic analysis. With no policy of any kind, a reader has no way to verify the vendor's own practices.
Data retention & training
Hosting summary
No hosting information is published. The site has no trust or security page, no privacy policy and no terms, so there is no declared jurisdiction, no named region and no list of subprocessors. The only indication available comes from network resolution rather than from the operator: the domain resolves to 76.76.21.21, an address in Vercel's range, geolocated to the United States (Walnut, California, AS16509 Amazon.com). That address is anycast, so it identifies an edge node rather than the place where user data would actually rest. The domain itself is registered through Cloudflare, a United States registrar. None of this amounts to a statement by the operator about where prompts or generated progressions are stored, and it should not be read as one. Anyone with a jurisdictional requirement, EU data residency in particular, has nothing here to rely on.
Things to keep in mind
Risks and trade-offs to weigh before adopting ChordGen.
- No terms or privacy policy exist, so nothing you type into the tool is covered by a published commitment: treat prompts as public
- The operator is anonymous, with only a footer copyright naming ChordGen and no company, address or owner to hold to account
- Retention is undocumented: no period is stated, no deletion procedure is described and no route exists beyond a general email address
- A Clerk authentication SDK loads on every page, including the generator, although the site advertises that no account is required; the discrepancy is not explained anywhere
- A free, unlimited service with no disclosed business model can change its terms, add a paywall or disappear without notice
- Leaning on generated harmony can quietly erode the habit of working progressions out by ear, a real risk for the music students the tool explicitly targets
- The comparison table sets ChordGen against generic "typical alternatives" rather than a named, measured product, as the site itself acknowledges
Setup & Integrations
Technical difficulty
Effectively none. ChordGen runs in a browser with nothing to install, nothing to configure and no account to create, and the published walkthrough puts the full loop, from prompt to exported MIDI, at about two minutes. The site states that no music theory knowledge is needed to write a usable prompt. The only real prerequisite sits downstream: knowing how to import a .mid file into your own DAW, routine for anyone already producing and a short first hurdle for a complete beginner.
Deployment
Integrations
Supported languages
Behind ChordGen
Resources
All the official URLs gathered for verification and reference.
Alternatives
Tools that compete with or complement ChordGen.
Frequently asked questions
Is ChordGen really free?
How do I describe what I want?
What comes back from a single prompt?
Can I change the chords the tool proposes?
Which DAWs can open the export?
Can I use the chords in a commercial release?
Does ChordGen work on a phone?
What does the site say about my data?
Should you pick ChordGen?
ChordGen does one job and does it without friction. You describe a feeling in ordinary language, three progressions come back, you audition them on a keyboard, rearrange whatever does not work, and leave with a standard MIDI file, free, unlimited and without ever creating an account. For a songwriter stuck on an opening or a producer tired of drawing chords into a piano roll, that is a genuinely cheap way to get moving again, and the explicit permission to use the output commercially without attribution removes the usual ambiguity.
The reservation is not musical, it is about governance. The site is four pages wide and publishes no terms of service, no privacy policy, no legal notice and no data processing agreement: those addresses return 404, and the sitemap confirms only three public URLs. No company name beyond a footer copyright, no postal address and no identifiable owner appear anywhere. Nothing is stated about what happens to the prompts you type, how long anything is kept, where it is hosted, or whether it feeds model training. The domain was registered in March 2025, and no changelog or blog documents how the product evolves.
That combination places ChordGen firmly on the personal side of the line. As a creative sketchpad opened in a browser, with output you carry away as a file, it is easy to recommend and costs nothing to try. As a tool adopted inside an organisation, or in any workflow subject to a compliance review, it cannot be assessed at all, because there is simply nothing to assess. Treat whatever you type into it as public, keep anything sensitive out, and judge the result on the music rather than on the vendor.
- Choosing a selection results in a full page refresh.
- Opens in a new window.