Free Online Tools for Text, Images, SEO and PDFs

Start with the task you need to finish

Choose a tool by its output, then check the worked example before entering your own information. Each listed tool has a guide explaining the inputs it accepts, the result it produces, and the limits that matter when you use that result.

Prepare an image for a website

Use JPG to WebP for a photograph, or PNG to WebP when your source has transparent areas. Set one dimension to resize without changing the proportions. Compare the preview and actual file sizes: converting formats does not guarantee a smaller image. Keep the original if you will edit it again.

Review a draft without overinterpreting a score

The Word & Character Counter estimates length and reading time. The Grammar Checker checks a small set of fixed patterns. The passage comparison counts shared words, and the writing-pattern score cannot tell you who wrote a document. Review wording, sources, and meaning yourself.

Combine documents or inspect data

Merge PDF combines compatible pages in file selection order. Check the result, especially forms and signatures. JSON Formatter provides readable indentation or compact JSON, but parsing can change numeric representation and duplicate keys. Use redacted examples instead of credentials or private records.

Understand how a result was produced

Calculators use the measurements or amounts you supply. Website diagnostics send a target address to our server, and domain lookups use RDAP registration events. A checklist score or registration date is only one observation; it is not a guarantee of search rankings, business legitimacy, health, or loan affordability. Report unexpected output with a small, non-sensitive example so the issue can be investigated.