The National Library of Australia has launched a major review of services, with key programs to be curtailed or cancelled amid staff cuts, as management struggles to deal with the Turnbull government's efficiency dividend.

The library expects to shed more than 20 jobs by June 30 with additional redundancies to follow in 2017-18. The library will also reduce the number of international print and online subscriptions available to members.

The National Library will be gravely affected by further budget cuts, according to its director-general. Credit:Katherine Griffiths

All public education programs are currently under review, with management ceasing publication of the quarterly National Library of Australia magazine. The library's corporate management group has also raised the prospect of outsourcing some duties and further automation of collection services.

The library will also cease aggregating content in Trove from museums and universities unless it is fully funded to do so.