Hasher
Malware Detected
This extension has been flagged as potentially malicious.
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-17.
Developer's toolbox. Calculates MD5, SHA-1, SHA-2, IP/Subnet, URL decode, Base64 and more
UPDATE: Access to URL and browser history is required to open the extension in a new tab instead of popup.
This extension is used to compute cryptographic hashes and do common conversions. It might be useful for programmers and system administrators. It's entirely implemented in JavaScript, all calculations are performed on client side, so it's safe.
Hash:
MD5, SHA-1, SHA-2 (224, 256, 384, 512), RIPEMD-160, MD4, Whirpool
HMAC:
MD5, SHA-1, SHA-2 (224, 256, 384, 512), RIPEMD-160, MD4
CRC:
CRC-8, CRC-16, FCS-16, FCS/CRC-32
Cipher (interoperable with OpenSSL):
AES-256, DES, Triple DES, Rabbit, RC4, RC4Drop. CBC/Pkcs7 is used.
Net:
Subnet calculator, Ip ↔ Dec, Ip ↔ Hex, Ip ↔ Bin
Time:
Unix ↔ Datetime, Unix ↔ RFC-1123, Unix ↔ ISO 8601
Numbers:
Dec ↔ Hex, Dec ↔ Bin, Dec ↔ Roman
Strings:
ASCII ↔ Hex, UTF-8 ↔ Hex, UTF-16 ↔ Hex
Encode:
Base64, ROT-13, JavaScript encodeURI(), encodeURIComponent(), HTML special chars encode/decode
Usage: enter text and click on the result. It will be copied to clipboard.
It's possible to open extension in separate window.
Source code is available on github.
Latest reviews
Very nice toolbox!
This is a great tool, really quick and useful. It would be great if there was an option to configure which hasher I want to be visible. For example, I'm only interested in the MD5 and url-encoder.
This is what I was searching for... helps a lot...
Exactly what I need: a lightweight utility that works offline for generating hashes
I'd love if there was an option to hide input behind ****.
просто и ничего лишнего. ++++++++++
方便了很多
给力
كيف يعمل ياليت تشرح لنا
also ich finde , es ist eine tolle ADDOn , macht was Sie Leisten sollte! Klasse kann ich nur weiterempfehlen
非常棒
功能强大，编解码必备工具
works and great
Вот это кульная приблуда!! Дай Бог тебе здоровья автор)))
최고에요
best seen so far
مفيد
Перестало работать под 59 хромом
excellent app and super handy for programmers
This is not a bad extension. I like that it's self-contained and doesn't require the use of an online service like some extensions do. That's a big plus. I installed it because I wanted to do decode some short Base64 strings from email messages. I was using Google Mail's "Show original" function to view the raw messages and get the encoded strings. The other extension I tried would get confused by the line breaks in the text I had selected. However, Hasher handled them very well. I didn't look at Hasher's code, but I presume it's ignoring line breaks and other whitespace. This is the way Base64 should be handled. Good job, Hasher! Some changes I'd like to see in Hasher: * Go back to the same tab ("Hash", "Time", "Encode", etc.) that was used last time I opened Hasher. * Use the text selected in the current browser tab as the input rather than requiring it be pasted in. * Going along with the previous item, replace the selected text with the hashed/encoded/decoded text.
Super useful extension, would donate if I saw somewhere to do so.
very handful
Fully satisfied!
i love it because some of the apps it doesn't even work at all. it's wasting my value time. so yeah, i have some apps that studying about web security application and i'm into coding wise, web developer option, web security networking, i love researching new knowledge. the more knowledge i learn the powerful mind i have. I don't even have a bachelor degree for computer science and i am learning everything on Google fundamentals documents.
功能全
Very good!
