19 Best Free Vigenere Cipher Online Services

Here is a list of best free Vigenere Cipher online services. Vigenere Cipher is a type of algorithm which is used to encrypt and decrypt plain text information. It uses a type of polyalphabetic substitution to encrypt and decrypt information that basically involves multiple substitutions of alphabets. It also uses the Vigenere table to perform the Vigenere operations. To perform the encryption and decryption processes, users just require a key with the input text. Like other encryption algorithms, it is used to protect sensitive information from unauthorized users. If you want to encrypt sensitive text information using the Vigenere cipher method, then check out these online services.

Through these services, users can quickly encrypt text information just by providing input text data and a secret key. Similar to encryption, users can perform the decryption process by providing the encrypted data and the same key used during the encryption process. On some websites, users also get options to choose Alphabet and Language types. To help out new users, I have provided the Vigenere encryption steps in the description of each website.

These websites also offer additional useful tools like Enigma Machine, Bacon Cipher, Substitution Cipher Tool, Hill cipher, Ceasar Cipher, etc. Go through the list to know more about these websites.

My Favorite Vigenere Cipher Online Service:

dcode.fr is my favorite website as it lets users perform both the Vigenere cipher encryption and decryption operations. Plus, it also supports multiple plain text languages and offers additional cipher tools.

You can also check out lists of best free Online XOR Encrypt, Online Twofish Encryption, and Online Blowfish Encryption websites.

Features/Website Names	Can Perform both Vigenere cipher Encryption and Decryption Operations	Supports Multiple Plain Text Languages	Contains Additional Cipher Tools	Lets Users Manually Specify Alphabets For Encryption
dcode.fr	✓	✓ (English, French, Spanish, German, etc.)	✓ (Beaufort, Autoclav, Wolseley, etc.)	✓
cryptii.com	✓	x	✓ (Enigma, Ceasar, Affine, etc.)	✓
planetcalc.com	✓	✓ (English, Portugese, Russian, and Spanish)	✓ (Playfair, Substitution, Hill Cipher, etc.)	x
cs.du.edu	✓	x	x	x
boxentriq.com	✓	✓ (English, French, German, Italian, etc.)	✓ (Beaufort, Gronseld, etc.)	x
md5decrypt.net	✓	x	✓ (Porta, ROT 13, Tritheme, Polybius, etc.)	x
calcoolator.eu	✓	✓ (Polish, English, Spanish, German, French, and Russian)	✓ (Playfair Vernam, Affine, etc.)	x
scopulus.co.uk	✓	x	x	x
metools.info	✓	x	✓ (Affine, Bacon's and Beaufort)	x
simonsingh.net	✓	x	✓ (Playfair, Homophonic, Pigpen, Caesar, etc.)	x
csetools.latrobe.edu.au	✓	x	x	x
studio.code.org	✓	x	x	x
crypto.interactive-maths.com	✓	x	✓ (Atbash, Pigpen, Caesar Shift, Affine, etc.)	✓
iepcbm.com	✓	✓ (English and Russian)	x	✓
rumkin.com	✓	✓ (English, Dutch, and Spanish)	✓ (Atbash, Base64, Pigpen, Rot 13, etc.)	x
mefancy.com	✓	x	x	x
gc.pitko.net	✓	x	x	x
sharkysoft.com	✓	x	x	x
gchq.github.io	✓	x	✓ (Atbash, Caesar Box, Bacon Cipher, Affine, etc,)	x

dcode.fr

dcode.fr is a free Vigenere cipher online service. This service offers multiple cipher encoder and decoder tools one of which is a Vigenere cipher. Using this tool, users can encode plain text information using the Vigenere cipher method. It also lets users specify the alphabets that they want output ciphered text should contain. An inbuilt decryption method is also present through which the user can decipher all the ciphered data. Now, follow the below steps.

How to perform Vigenere cipher online using dcode.fr:

Start this website and access the Vigenere Encoder tool.
After that, enter the text information in the cipher text field.
Next, specify all the alphabets and a cipher key.
Lastly, click on the Encrypt button to view the output Vigenere data.

Additional Features:

This website also offers additional cryptography, word games, codes & alphabets, and game-solving tools.

Final Thoughts:

It is one of the best free Vigenere cipher online services that anyone can use to encode and decode text using the Vigenere cipher technique.

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cryptii.com

cryptii.com is a free Vigenere cipher online service. Using this service, users can encrypt plain text using one of four available Vigenere ciphers namely Standard Vigenere Cipher, Beaufort Cipher, Variant Beaufort Cipher, and Trythemius Cipher. Before starting the encryption process, it also lets users specify the Cipher Key, Key Mode, encryption Alphabets, and Case strategy. After performing the encryption, it shows the output encrypted text that users can copy. Now, follow the below steps.

How to perform Vigenere cipher online using cryptii.com:

Start this website using the given link.
After that, enter the plain text that you want to encrypt.
Now, go to Encode section and choose the Vigenere Cipher option.
Next, specify the Vigenere cipher variant, key, key mode, alphabet, etc.
Lastly, view the ciphered text in the cipher text field.

This website also lets users decrypt or decode the Vigenere cipher text.

Additional Features:

This website also offers additional Cipher methods such as Enigma Machine, Ceasar Cipherm Affine Cipher, Bacon Cipher, and more.

Final Thoughts:

It is another good Vigenere cipher online service through which users can encrypt text using the Vigenere cipher method.

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planetcalc.com

planetcalc.com is another free Vigenere cipher online service. Through this service, users can encrypt text using the Vigenere cipher method. Not only encrypt, it also lets users decrypt Vignere cipher text. Before starting the encryption process, users can choose either ROT0 or ROT1 tabula reacta. Besides this, a custom key can also be provided by the users. Now, follow the below steps.

How to perform Vigenere cipher online using planetcalc.com:

Visit this website using the given link.
After that, choose ROT0 or ROT1 tabula reacta option.
Now, enter the text that you want to cipher.
Next, enter a key and choose Encrypt option.
Lastly, click on the Calculate button to view the ciphered text.

Additional Features:

This website also offers additional online tools like Playfair cipher, Substitution Cipher Tool, Hill cipher, Ceasar Cipher, and more.

Final Thoughts:

It is another good online Vigenere cipher online service that helps users quickly encrypt text information using the Vigenere cipher method.

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cs.du.edu

cs.du.edu is another free Vigenere cipher online service. This service comes with a dedicated Vigenere cipher encoder/decoder tool. Through this tool, users can quickly cipher plain text using the Vigenere cipher method. Plus, users can also use it to decrypt the ciphered text to obtain the original information. Before starting the Vigenere cipher process, users can specify their own key or select a random key using the Random button. Besides this, it also lets users add and remove spaces from the output. Now, follow the below steps.

How to perform Vigenere cipher online using cs.du.edu:

Launch this website using the provided link.
After that, enter the text that you want to encode in the text to encode field.
Now, specify a key or choose the Random key option.
Lastly, click on the Encode button to view the output ciphered or encoded information.

Final Thoughts:

It is one of the simplest Vigenere cipher online services through which users can quickly encode and decode text information using the Vigenere cipher method.

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boxentriq.com

boxentriq.com is another free Vigenere cipher online service. Through this service, users can encode text information using the Vigenere cipher technique. It can also be used to decode Vigenere ciphered text information. On this website, users can input text information with upper case letters, removed spaces, letters only, etc., configurations. After entering the text, users just need to specify a key to start the encoding process. Now, follow the below steps.

How to perform Vigenere cipher online using boxentriq.com:

Launch this website using the given link.
After that, enter the input text in one of the available text configurations.
Next, specify the key and choose either the autokey variant or the standard mode option.
Lastly, click on the Encode button to start the encoding process.

Additional Features:

This website also offers Steganography, Modern Cipher, Analysis, and Word Tools.

Final Thoughts:

It is another good Vigenere cipher online service that anyone can use to encode and decode text using the Vigenere cipher method.

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md5decrypt.net

md5decrypt.net is yet another free Vigenere cipher online service. This service offers a dedicated Vigenere Cipher Decode & Encode tool through which users can decode and encode text information. Although, users can enable or disable some cipher parameters before starting the encoding process like Leave Whitespaces, Leave numbers, and Leave all characters. Now, follow the below steps.

How to perform Vigenere Cipher online text using md5decrypt.net:

Launch this website and open up the Vigenere Cipher Decode & Encode tool.
After that, enter the input text in the text field.
Now, enable or disable the leave whitespaces, leave numbers, and leave all characters options.
Next, enter a key in the key field.
Lastly, click on the Crypter button to view the encrypted text.

Additional Features:

Encrypt/ Decrypt: This section contains multiple encryption and decryption tools like Md5 Decryption, Sha 1 Decryption, Xor Decryption, Leet translator, hash finder, and more.
Conversion Tools: It contains multiple useful conversion tools like Text to Binary, Hexadecimal to Binary, Hexadecimal to Text, base64 to Text, and more.
Ciphers: It offers additional cipher tools like ROT13, Ceasar cipher Decryption, Letters frequency analysis, etc.

Final Thoughts:

It is another capable Vigenere cipher online service that anyone can use without much hassle.

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calcoolator.eu

calcoolator.eu is another free Vigenere cipher online service. Using this website users can perform Vigenere cipher operation to encrypt plain text data. To secure the encryption, it lets users assign a key or custom alphabet. Besides this, users also need to specify an encryption password. Similar to encryption, it can also be used to decrypt text using Vigenere cipher. Now, follow the below steps.

How to perform Vigenere cipher online using calcoolator.eu:

Visit this website and open up the vigenere cipher encoder/decoder option.
After that, specify the key or alphabet.
Next, enter the password and enter the text that you want to encrypt.
Lastly, view and copy the ciphered text from its interface.

Additional Features:

Calculators: This section offers multiple online calculator sections that may come in handy like Mathematics, Statistics, Physics, Chemistry, and more.
Graphs & Charts: This section allows users plot graph and charts based on different functions like basic functions, nested functions, hyperbolic functions, program functions, and more.

Final Thoughts:

It is another simple-to-use Vigenere cipher online service through which users can encode and decode text using the Vigenere cipher technique.

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scopulus.co.uk

scopulus.co.uk is yet another free Vigenere cipher online service. This service offers a simple encoding/decoding Vigenere cipher tool. This tool only needs input text data and a secret key of up to 512 characters to perform the encryption process. Similar to the encryption process, it can also decrypt the data using the encrypted text and secret key. Now, check out the below steps.

How to perform Vigenere cipher online using scopulus.co.uk:

Visit this website and access the Vigenere Cipher tool.
After that, enter the Secret Key and input text that you want to encrypt.
Next, click on the Encode button to start the encryption process and copy the final ciphered code.

Additional Features:

On this website users also get additional tools like Break Even Calculator, Internet Speed Test, Bitcoin Market Prices Tracker, and more.

Final Thoughts:

It is a straightforward Vigenere cipher online service that helps users encrypt and decrypt text using Vigenere cipher encoding method.

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metools.info

metools.info is a free Vigenere cipher online service. This website comes with a dedicated Vigenere cipher solver tool that can encrypt as well as decrypt text information. To perform the encryption or encoding process, it only needs input text data and a user-defined key. It also explains the concepts of the Vigenere cipher technique. Similar to the encryption process, it can also perform decryption using the decrypted data and key used by users at the time of encryption. Now, follow the below steps.

How to encrypt Vigenere cipher online using metools.info:

Visit this website and go to the Vigenere Cipher Solver tab.
Now, enter the text data that you want to encrypt in the Before Conversion tab.
Next, enter the key and click on the Encode button to start the encryption process.

Additional Features:

This website also offers additional encoding and decoding tools like Affine Cipher Encode, bacon’s Cipher Encoder, Beaufort Cipher, and more.

Final Thoughts:

It is another good and easy-to-use online service to encrypt and decrypt text data using the Vegenere cipher technique.

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simonsingh.net

simonsingh.net is another free Vigenere cipher online service. This website offers many cipher tools one of which is a Vigenere Square Tool that helps users encode text using the Vigenere cipher method. Along with encoding the text data, it also shows the Encipher table. It also offers Slow and Fash Encryption options. Like other similar websites, it also needs a Key (keyword) and plain text as input to perform the encryption. Now, follow the below steps.

How to perform Vigenere cipher to encrypt text using simonsingh.net:

Go to this website and select the Vigenere Square Tool.
Now, enter the keyword and select either the slow or fast encryption method,
Next, enter the input text data in the Plain text field.
Finally, click on the Encipher Plaintext button to view the ciphered text in the Ciphertext box.

Additional Features:

This website also offers a good number of additional cipher tools like Chamber Cipher, transposition, Latin Square, Ceasar Cipher, Digraph Cipher, etc.

Final Thoughts:

It is another good Vigenere cipher online service that can quickly encrypt text data and shows Encipher table.

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csetools.latrobe.edu.au

csetools.latrobe.edu.au is another free Vigenere cipher online service. This service offers a Vigenere cipher tool through which users can encrypt and decrypt plain text data. To perform the encryption operation, users need to enter the text that they want to encrypt along with a key. Similar to the encryption process, users can also decrypt data with ease. Now, follow the below steps.

How to perform Vigenere cipher operation online using csetools.latrobe.edu.au:

Visit this website using the given link.
After that, enter the text in the Input text field.
Next, enter the Text Vigenere Key and hit Encrypt button to view the encrypted text that you can also copy.

Additional Features:

On this website, users get multiple online tools like Find Key Length, Split Text, Frequency Analysis, merge Parts, and more.

Final Thoughts:

It is another good online Vigenere cipher website that offers both text encryption and decryption capabilities.

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studio.code.org

studio.code.org is a free Vigenere cipher service online. Using this service, users can encrypt or cipher 104 characters in a text message, using the Vigenere cipher method. Unlike other similar websites, it also shows the cipher table with a step-by-step Vigenere ciphering process. It also lets users increase or decrease the encryption speed. Apart from encryption, it can also be used to decrypt Vigenere-ciphered text information. Now, follow the below steps.

How to perform Vigenere cipher operation online using studio.code.org:

Visit this website and open up the Vigenere Cipher widget.
After that, enter the secret text message that you want to encrypt.
Next, enter a secret key in the secret key field.
Now, select the Encrypt option and specify the encryption speed using the slider.
Lastly, click on the Play button to start the encryption process.

Additional Features:

This website offers a good set of coding projects and lessons for students.

Final Thoughts:

It is another effective Vigenere cipher online service that can perform the Vigenere encryption and decryption process.

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crypto.interactive-maths.com

crypto.interactive-maths.com is another free Vigenere cipher service online. Using this website, users can perform both Vigenere cipher encryption and decryption process. Plus, it also explains about Vigenere cipher method using examples and cipher tabula reacta. Now, check out the below steps.

How to perform Vigenere cipher online using crypto.interactive-maths.com:

Visit this website using the given link.
After that, select alphabet type (Standard, Include Basic Punctuation, Include Numbers, etc.).
Next, enter the key and specify the key length.
Lastly, enter the text that you want to encrypt in the Plaintext field and click on the Encrypt button.

Additional Features:

This website also offers additional cipher tools like Atbash Cipher, Pigpen Cipher, Affine Cipher, Mixed Alphabet Cipher, etc.

Final Thoughts:

It is another good Vigenere cipher online service through which users can encrypt as well as decrypt plain text using Vigenere cipher method.

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iepcbm.com

iepcbm.com is another free Vigenere cipher online service. This website offers open source Vigenere cipher Encryption and Decryption tools. Using these tools, users can encrypt and decrypt English and Russian alphabets. Plus, both the encryption and decryption process is also quite straightforward. Now, check out the below steps.

How to perform Vigenere cipher online service using iepcbm.com:

Launch this website and select the Encryptor tool.
After that, select either English or Russian language from the Language section.
Now, enter the plain text in the text field.
Finally, enter a secret key and click on Encrypt! button to view the encrypted data.

Additional Feature:

This website also offers an additional Vigenere cipher decryptor tool that anyone can use with ease.

Final Thoughts:

It is another good online Vigenere cipher online service that anyone can use without much hassle.

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rumkin.com

wiremask.eu is another capable online Vigenere cipher website. This website comes with Ciphers and Codes section that contains a Vigenere tool that can encrypt as well as decrypt text using the Vigenere cipher method. It also lets users specify both Alphabet and Cipher keys. Plus, to help users understand the Vigenere cipher encryption process, it shows the Vigenere cipher table along with multiple examples. Now, follow the below steps.

How to perform Vigenere cipher online using wiremask.eu:

Go to this website and access the Vigenere section.
After that, select the Encrypt option from the Operating Mode menu.
Now, specify the Alphabet and Cipher keys.
Lastly, enter the plain text to start the Vigenere cipher process.

Additional Features:

This website comes with a good set of web-based tools such as Base Converter, Ciphers and Codes, Decision Tree, HTML Encoder, Population Counter, and more.

Final Thoughts:

It is another capable online Vigenere cipher website that performs both Encryption and Decryption processes as well as explains the Vigenere cipher with examples.

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mefancy.com

mefancy.com is another free Vigenere cipher online service. This website comes with one of the simplest Vigenere cipher encryption and decryption tools. This tool only needs input text that you want to encrypt or decrypt and a key to perform the encryption or decryption process. It also offers a good set of additional tools that I have mentioned in the Additional Features section. Now, follow the below steps.

How to perform Vigenere cipher operation online using mefancy.com:

Visit this website and open up the Vigenere Cipher Encryption Decryption tool.
After that, enter the plain text in the text field.
Now, enter a secret key in the key section.
Lastly, hit the Encrypt button to view the encrypted text data that you can copy.

Additional Features:

This website also offers a good set of additional tools like Think Calculators, Area Codes, Code Postal, BIN Codes, and more.

Final Thoughts:

It is another good Vigenere cipher online service through which users can easily perform Vigenere operations to encrypt and decrypt plain text.

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gc.pitko.net

gc.pitko.net is another free Vigenere Cipher online service. This website uses Vigenere cipher to perform both encryption and decryption processes. Although, it can only encrypt plain text information. Before starting the encryption process, users can also specify a key and Alphabet type. Now, follow the below steps.

How to perform Vigenere cipher online using gc.pitko.net:

Start this website using the provided link.
After that, enter the plain text that you want to encrypt in the Input field.
Next, specify the key in the key field.
Lastly, choose the Encrypt option and hit the Vigenere button to view the encrypted output.

Additional Features:

This website also shows additional tools like Great Circle Calculator, GADE Key Generator, BBCode, GeoPlot, and more.

Final Thoughts:

It is another simple-to-use Vigenere Cipher online service through which users can quickly encrypt and decrypt plain text information.

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sharkysoft.com

sharkysoft.com is another Vigenere cipher online service. This service offers a browser-based Vigenere cipher tool that can perform both encryption and decryption processes. Plus, it doesn’t transmit any data to its servers to ensure the privacy and security of users’ data. To help out users, it explains the Vigenere encoding process along with the steps of both the Vigenere encoding and decoding processes. Now, follow the below steps.

How to perform Vigenere cipher online using sharkysoft.com:

Launch this website and select the addition operation for encoding and the subtraction operation for decoding.
After that, enter the secret input text and secret key.
Now, specify if you want to mask and obsfuscate input text and secret key or not.
Lastly, view the encoded or decoded text in the output text section.

Final Thoughts:

It is another simple yet very capable Vigenere cipher online service that can perform both encoding and decoding operations on plain text data.

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gchq.github.io

gchq.github.io is another free Vigenere cipher online service. This website offers multiple encryption and description tools two of which are Vigenere tools named Vigenere Encode and Vigenere Decode. These tools need plain text and Vigenere encode keys to perform the encryption and decryption process. Now, follow the below steps.

How to perform Vigenere cipher operation online using gchq.github.io:

Go to this website and look for the Vigenere Encode tool using the Search.
After that, enter the plain text in the input field.
Next, enter the secret key in the key field.
Lastly, view the final ciphered text in the Output section.

Additional Features:

This website also offers additional Encryption and Decryption tools like AES Encrypt. AES Decrypt, Blowfish Encrypt, DES Decrypt, LS47 Encrypt, and more.