Filemivo
PNG to JPGConvert PNG images to compact JPG files locally.→JPG to PNGConvert JPG images to lossless PNG files locally.→PNG to WebPConvert PNG images to efficient WebP files locally.→WebP to PNGConvert WebP images to PNG directly in your browser.→JPG to WebPConvert JPG images to efficient WebP files locally.→WebP to JPGConvert WebP images to broadly supported JPG files locally.→Resize imageResize one or many images to exact pixel dimensions.→Compress imageReduce image file size with an adjustable quality setting.→Crop imageCrop images by entering precise coordinates and dimensions.→Rotate imageRotate images clockwise or counterclockwise without uploading.→View metadataInspect available image and EXIF metadata privately.→Remove metadataCreate a clean image copy without embedded metadata.→Format JSONPretty-print or minify JSON in your browser.→Validate JSONValidate JSON syntax and locate errors.→JSON to CSVConvert arrays of JSON objects into CSV.→CSV to JSONConvert CSV rows into structured JSON objects.→JSON to YAMLConvert valid JSON into readable YAML.→YAML to JSONConvert YAML documents into formatted JSON.→JSON to XMLConvert JSON data into an XML document.→XML to JSONConvert XML documents into formatted JSON.→Base64Encode UTF-8 text as Base64 and decode Base64 to text locally.→URL encodeEncode or decode URL components safely.→Generate hashGenerate SHA-256, SHA-384 or SHA-512 hashes from UTF-8 text.→Generate UUIDGenerate cryptographically strong UUID v4 identifiers.→Unix timestampConvert between Unix timestamps and human-readable dates.→Compare textCompare two blocks of text line by line.→Count wordsCount words, characters, sentences and lines instantly.→Deduplicate linesRemove repeated lines while preserving the first occurrence.→Sort linesSort text lines in ascending natural alphabetical order.→

Private browser tool

Hash Generator

Generate SHA-256, SHA-384 or SHA-512 hashes from UTF-8 text free in your browser. Copy a hexadecimal digest privately without uploading the source.

✓ Local processing✓ No uploads✓ No account
  1. 1Add input
  2. 2Choose options
  3. 3Get result

Private on this device

Filemivo uses browser APIs to process your input on this device. File contents, filenames and metadata are not sent to our server or analytics.

Next step

Continue working with your file

Browse all tools →
TEXT→BASE64
→

Base64

Encode UTF-8 text as Base64 and decode Base64 to text locally.

UUID→

Generate UUID

Generate cryptographically strong UUID v4 identifiers.

TEXT→

URL encode

Encode or decode URL components safely.

Simple by design

From file to result in three steps

  1. 1

    Paste the text you want to hash.

  2. 2

    Select SHA-256, SHA-384 or SHA-512.

  3. 3

    Generate and copy the digest, then compare every character where needed.

Practical guidance

When to use Generate hash

Best for

Producing a repeatable digest of text with modern SHA-2 algorithms.

What you get

A fixed-length hexadecimal digest of the UTF-8 text. The same text and selected algorithm produce the same hash.

Useful tip

This workspace hashes text, not original binary file bytes. A hash is not encryption or a password-storage scheme.

Compare checksums character for character

A matching digest is useful evidence that two byte sequences are identical. Make sure both sides use the same algorithm and compare the complete value, not just the beginning.

Text encoding affects the result

Hashes operate on bytes. Visually similar text can hash differently when spaces, line endings, capitalization or Unicode normalization differ.

Learn why source data stays local →

Good to know

Frequently asked questions

Which hash algorithm should I choose?+

SHA-256 is the most commonly requested choice for file checksums. Use SHA-384 or SHA-512 only when the destination specifically requires it.

Can I turn a hash back into the original value?+

No. Cryptographic hashes are designed as one-way digests rather than reversible encryption.

Why does a tiny text change create a different hash?+

A secure hash is designed so that even a one-byte change produces a very different digest.

Is SHA-256 suitable for passwords?+

Not by itself. Password storage should use a dedicated slow password-hashing scheme with a unique salt, such as Argon2, scrypt, bcrypt or PBKDF2.

Does my file leave my device?+

No. This tool processes your file inside your browser and does not send its contents, name or metadata to Filemivo.

Is Generate hash free?+

Yes. It is free to use and has no artificial file-size limit. Your browser and device memory determine the practical limit.