Free account available for basic profile and job search. Premium Career listed near 40 dollars monthly in the US when billed monthly, lower on annual. Premium Business near 70 dollars monthly. Higher tiers for sales and recruiting cost more. Prices vary by country, taxes and billing period.
Official comparison: premium.linkedin.com/careers/compare-plans and small-business plans. The vendor site is the only reliable source.
Up to a few free job posts per month in many regions. Sponsored jobs use a budget that starts from about 5 dollars per day or 150 dollars per month. Actual cost depends on role, location and chosen budget type. Resume contact subscriptions exist at higher monthly amounts.
Official pricing: indeed.com/hire/pricing. Confirm current figures there.
Wellfound is free for most job seekers and charges employers for promoted posts or recruiter tools. ZipRecruiter employer plans are commonly discussed in the low hundreds of dollars monthly, but exact amounts are set on their site. X is free for basic posting. Upwork takes a service fee on completed contracts rather than a fixed monthly membership for most users.
Each platform publishes its own current rates. Ranges here are approximate and can change.