Online Converters
Conversion tasks are the plumbing of technical work: a value arrives in one representation and has to leave in another. Base64 for a payload, a hexadecimal number as decimal, a CSV export as JSON, a URL with characters that need escaping. Each takes seconds to do and minutes to do badly by hand.
This category holds 18 converters on Craftisle. They run in the browser, so credentials, tokens, and payloads you paste are never transmitted to a server.
Encodings and number bases
Base64 Encode/Decode is the workhorse for payloads, data URIs, and basic auth headers. Base32 and Base58 cover the encodings you meet in crypto and shortened identifiers. Radix Converter moves numbers between binary, octal, decimal, and hexadecimal in either direction.
URL Encode/Decode escapes the characters that break query strings, and Image to Base64 turns an image into a data URI — or back into a file, which is the quick way to inspect an embedded asset.
Data and units
CSV/JSON Converter translates between the two formats that refuse to agree, which is most of the friction in moving data between a spreadsheet and an API.
Byte Converter moves between bytes, KB, MB, GB, TB, and PB. It settles the recurring argument about whether a vendor means 1,000 or 1,024, because you can see both readings side by side. PNG to SVG handles the vector conversion case.
Accuracy over speed
Conversions are easy to get subtly wrong — an off-by-one in a base conversion, a padding character dropped from a Base64 string, a URL escaped twice. Doing them with a tool removes a class of bug that is genuinely tedious to debug after the fact.
Because these run locally, you can paste production tokens and real payloads without wondering who else can read them.
Frequently asked questions
Are these converters free?
Yes. All 18 converters are free with no account and no limit on how many values you convert.
Is anything I paste uploaded?
No. Conversion runs in your browser; the values are not sent to a server.
Can I convert in both directions?
Most converters are bidirectional — encode and decode, or convert either way between units. Each tool page states its directions.
Do they handle large inputs?
Yes, within the limits of your device memory. There is no artificial size cap.