Text Encoding & Hash Tools

Calculators

Switch between common text encodings and digest algorithms while clearly distinguishing reversible encoding from one-way hashing.

Developer & Text Tools

Direct answer

AppKiro Encoding Tools combines UTF-8 Base64 encode/decode, URL-component percent encoding/decoding and MD5, SHA-1, SHA-256 or SHA-512 text digests. Base64 and percent encoding are reversible representations; cryptographic hashes are one-way digests, not encryption. UTF-8 Base64 encode and decode. URL-component percent encode and decode.

Encode, decode or hash text Open the full URL tool

Text to encode

Base64 output

How to use it

Enter the source data: Choose Base64, URL Component or Hash and paste non-sensitive UTF-8 test text.
Choose the relevant settings: Select encode/decode or the digest algorithm. For URL data, decide whether you are encoding one component or parsing a complete URL.
Review and verify the result: Copy the result with its method label. For hashes, preserve exact input bytes/normalization; for decoded content, treat the result as untrusted data.

Key capabilities

UTF-8 Base64 encode and decode.
URL-component percent encode and decode.
MD5 and SHA-1 compatibility digests with security warnings.
SHA-256 and SHA-512 text digests.
Copyable input/output within a tabbed workflow.

Best use cases

Prepare Base64 fixtures for documentation or APIs.
Encode a query parameter or path segment safely as a component.
Compare a text digest for non-password integrity/testing use.

Limits and safety notes

Encoding does not provide confidentiality. A hash is not reversible encoding, but plain fast hashes also do not safely store passwords. Exact bytes, Unicode normalization and line endings affect outputs. Use a password-hashing/KDF system for credentials.
The core transformation runs in the current browser component. Browser extensions, clipboard history, downloaded files and site-wide diagnostics remain separate exposure points, so never enter production secrets unless you have reviewed the complete environment.
Base64 uses the standard alphabet and browser padding rules; decoding rejects malformed input. URL mode uses encodeURIComponent/decodeURIComponent, while the hash tab returns MD5, SHA-1, SHA-256 and SHA-512 text digests.

Troubleshooting

Base64 decode fails

check alphabet, padding and whether the input is Base64URL rather than standard Base64.

URL decode throws an error

the percent sequences may be malformed or represent non-UTF-8 bytes.

Hash differs elsewhere

compare encoding, normalization, whitespace and newline bytes exactly.

Frequently asked questions

What is the difference between encoding and hashing?

Encoding changes representation and is intended to be reversible. Hashing produces a fixed-length digest and is designed to be one-way, although algorithm security varies.

Is Base64 encryption?

No. Anyone can decode Base64; it provides no secrecy.

Should I use MD5 or SHA-1 for security?

Not for modern collision-resistant signatures, certificates or integrity guarantees. Retain them only for explicitly compatible legacy/non-security checks and show a warning.

Is it safe and private?

The calculation runs in this browser component, but that alone is not a complete privacy guarantee. Use non-production data unless you have also reviewed extensions, clipboard history, downloads and site diagnostics.

Does it work on mobile?

The layout adapts to narrow screens. File selection, camera access, clipboard actions and downloads still depend on the permissions and capabilities of the mobile browser.

URL Encoder, Decoder & Parser Number Base Converter Text Scratchpad

Use the tool

Choose the exact transformation, use test data and label the output so encoding, decoding and hashing are never confused.