The archive is making available thousands of items too fragile to go on public display.
There will also be pages on the conservation work carried out by the Jersey Heritage Trust as it tries to preserve the past.
The trust looks after over 350,000 artefacts, works of art and information relating to the island's history.
The website also includes Occupation Archive material which was listed on the UNESCO UK memory of the world register in early 2011.
Linda Romeril, Head of Archives and Collections at Jersey Heritage, said the collections were "at the heart of what we do and it is our duty to protect and pass on these unique items to future generations".
"These collections define the Island; they hold the evidence for its historical development and act as the community's memory," she said.

Petersen, 35, who has spent the last two years with Lancashire, is charged with multiple breaches of Cricket South Africa's (CSA) anti-corruption code.
In January, as part of the same investigation, former Proteas spinner Gulam Bodi was banned for 20 years after admitting charges of contriving or attempting to fix matches.
Then in August, CSA banned former wicketkeeper Thami Tsolekile for 12 years for his part in the scandal, while Pumelela Matshikwe, Ethy Mbhalati and Jean Symes received lesser bans for accepting money from Bodi.
Petersen, who has 14 days to respond, has been charged with:
Born in Port Elizabeth, Petersen featured in 36 Tests, 21 one-day internationals and two Twenty20 internationals for South Africa.
He previously played for English county sides Glamorgan, Essex and Somerset, before joining Lancashire as a non-overseas player under the Kolpak ruling after he retired from internationals.
Petersen said in September that he might not return to Lancashire for 2017 for family reasons.

Sir Richard Gozney will be paid around £100,000 a year as the Queen's latest representative on the island and live in Government House.
A Celtic League spokesman said using public money to fund the position "was outrageous at a time of austerity".
A government spokesman said the full cost of the role is £400,000 a year including all associated salaries.
Mr Gozney, a former governor of Bermuda, became the Isle of Man's 30th Lieutenant Governor when he was sworn in on 27 May.
He succeeds Adam Wood who stepped down in April after five years.
Bernard Moffatt, of the Celtic League said the position was a "relic of the colonial past" and "could not be justified."
Sir Richard represented the Isle of Man in Orkney at a commemoration to those who lost their lives at the Battle of Jutland, a key naval engagement of World War One.
He said: "Because of the Isle of Man's strong and heroic maritime and naval history, Government and I thought it right to accept the invitation."
The Lieutenant Governor acts as the representative on the Isle of Man of the Lord of Mann, currently Queen Elizabeth II.
No Manx-born person has ever been appointed to the role.
Historical documents and works of art held by the Jersey Archive have been published online for the first time.
[NEXT_CONCEPT]
Ex-South Africa batsman Alviro Petersen has been charged with match-fixing, following a lengthy investigation into the domestic Ram Slam T20 Challenge Series competition in 2015.
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The "huge costs" of having a Lieutenant Governor for the Isle of Man "cannot be justified," a nationalist group said.