Research Guide
French Archives Online: The Free Goldmine Americans Don't Know About
American genealogists grow up in a world of paywalls. Records live behind subscriptions; "free" usually means "free trial." So here is a sentence that sounds too good to be true: France has digitized centuries of its parish registers, civil records, censuses and military rolls, and put them online for free. Not samples. Not indexes pointing to paid images. The actual registers, page by page, from the 1500s onward, free to anyone, anywhere, no account required in most cases.
The catch, because there is one, is that this goldmine is organized the French way, labeled in French, and scattered across a hundred websites. This guide is your map.
First, understand the French system
France has no national database of people. Records were created locally, by the parish priest before the Revolution and by the town hall after 1792, and they are archived by département, France's hundred-or-so administrative counties. So the goldmine isn't one mine: it's a hundred mines, one per département, each with its own website. Everything starts with knowing your ancestor's commune. If you don't know it yet, start with our guide to finding your ancestor's French village, then come back here.
The crown jewels: the departmental archives
Nearly every département has put its état civil (civil registration of births, marriages and deaths since 1792) and its parish registers (baptisms, marriages, burials, often back to the 1600s and sometimes earlier) online for free. Many add censuses, military conscription registers, notarial finding aids, old cadastral maps, and more.
To find the right site, search for "archives départementales" plus the département's name (for example, "archives départementales Vienne"), or use the national directory at FranceArchives. Once there, look for a section called état civil or registres paroissiaux, choose your commune from an alphabetical list, pick the register and the years, and a viewer opens the scanned pages. The interfaces vary, some elegant, some charmingly vintage, but the logic is always the same: commune, record type, date range, images.
The researcher's shortcut: tables décennales
Before diving into a register page by page, look for the tables décennales, the ten-year alphabetical indexes of every birth, marriage and death in the commune, compiled since 1792. They let you sweep decades in minutes: find your surname in the table, note the date, then open the register straight to the right year. It's the single biggest time-saver in French research.
The national treasures
Around the departmental mines, a handful of national sites reward every researcher. FranceArchives is the master directory of the whole system, with a growing federated search. Gallica, the digital library of the Bibliothèque nationale, holds old city directories, local histories, newspapers and maps, wonderful for turning names into context. Mémoire des Hommes, run by the Ministry of the Armed Forces, lists every French soldier who died in the World Wars and opens registers from earlier conflicts. Géoportail, the national mapping site, locates every commune and overlays historical maps, including the 18th-century Cassini maps, where you can often find your family's hamlet, mill or farm under its old name. The Archives de Paris deserve their own mention: Paris's civil records burned in 1871, but the reconstituted and post-1860 registers are online. And for French-Canadian researchers, the Fichier Origine matches Québec's pioneers to their verified French baptismal records: the official bridge across the Atlantic, covered in detail in our French-Canadian guide.
So what does "free" actually cost?
Effort, mostly. The archives hand you the raw registers, not a search box: no name search across France, no transcriptions, no translations. You'll navigate French websites, read French acts in handwriting that gets older and stranger as you climb the centuries, and follow the French system's logic: communes, arrondissements, communicability rules for recent records. For many families, that's a joyful winter project. For others, it's exactly why a researcher who grew up with the language and the system is worth having in your corner.
Want a guide in the goldmine?
I'm a French native based in the United States, and these archives are where I live. Right now, before my professional launch, I'm researching a small number of families completely free of charge, with documented finds from the actual archives.
Join the Founding Families listFrançois is a French-born genealogist living in the United States. New to French research? Start with the New to French research? Start with the complete guide to tracing your French ancestry. Explore the guides: parish or commune, and the 1792 line that decides where your record is · Cajun and Acadian roots back to France · French-Canadian ancestry back to France · finding your Alsatian ancestors · how to find the French village your ancestor came from · was your ancestor French or German. Protestant registers follow their own rules: read Huguenot and French Protestant ancestry. Recent emigration instead? Read how to find your French grandparents, and finding the French village from a ship manifest.