What is difference between crawling and indexing?

Crawling and indexing are two distinct things and this is commonly misunderstood in the SEO industry. Crawling means that Googlebot looks at all the content/code on the page and analyzes it. Indexing means that the page is eligible to show up in Google's search results.

Crawling – Following links to discover the most important pages on the web.
Indexing – Storing information about all the retrieved pages for later retrieval.

Crawling mean that the robots of google analyze content of a webpage.
Indexing means when  google save your webpage in his database and your web page show in google search

Crawling is a process which is done by search engine bots to discover publicly available web pages. Indexing means when search engine bots crawl the web pages and saves a copy of all information on index servers and search engines show the relevant results on search engine when a user performs a search query.

Crawling and indexing are two distinct things and this is commonly misunderstood in the SEO industry. Crawling means that Googlebot looks at all the content/code on the page and analyzes it. Indexing means that the page is eligible to show up in Google's search results.

Crawling : Crawling is the discovery process in which search engines send out a team of robots (known as crawlers or spiders) to find newly updated content.
Indexing : Indexing is the process that stores information they find in an index, a huge database of all the content they have discovered, and seem good enough to serve up to searchers.

Featured Snippets.
Breadcrumbs.
Sitelinks.
Site Search.
Knowledge Graph.
Article & Blog Schema.
Job Posting Schema. .

Crawling and Indexing are two different things. Some people misunderstood both in SEO.
Crawling means google bot finds web pages, URLs from various ways, sitemap, and by many other means. It is the process of new and updated web pages.
Indexing means google bot comes read all the information of the web page and appear it into the search list.  Google adds all pages that it knows about in its index. this entry describes URL location and content.

Crawling is a process which is done by search engine bots to discover publicly available web pages. Indexing means when search engine bots crawl the web pages and saves a copy of all information on index servers.

Crawling is a process that's executed through seek engine bots to discover publicly available web pages. Indexing approach while seek engine bots move slowly the internet pages and saves a replica of all information on index servers and search engines display the applicable results on seek engine while a person plays a search question.

Crawling is the invention of pages and hyperlinks that cause more pages. Indexing is storing, studying, and organizing the content and connections between pages

Crawling- When Seach Engine Bots discover your website links and add them to their subdirectory.
Indexing- After crawling Seach engine robots submit our website or page to the search results based on the content present in our website.