diff --git a/package-lock.json b/package-lock.json
index 74c129b..d2b7830 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,17 +16,20 @@
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         "cors": "^2.8.5",
         "cross-env": "^7.0.3",
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         "helmet": "^7.1.0",
         "http-auth": "^4.2.0",
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         "pino": "^9.0.0",
         "pino-http": "^10.1.0",
         "pino-pretty": "^11.0.0",
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         "stoppable": "^1.1.0"
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       "dev": true
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       "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.4.0.tgz",
@@ -2066,6 +2078,437 @@
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@@ -3812,6 +4255,11 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
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       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
       "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-      "dev": true,
       "dependencies": {
         "color-name": "~1.1.4"
       },
@@ -4172,8 +4631,16 @@
     "node_modules/color-name": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-      "dev": true
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+    },
+    "node_modules/color-string": {
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/color-string/-/color-string-1.9.1.tgz",
+      "integrity": "sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg==",
+      "dependencies": {
+        "color-name": "^1.0.0",
+        "simple-swizzle": "^0.2.2"
+      }
     },
     "node_modules/colorette": {
       "version": "2.0.20",
@@ -4372,6 +4839,33 @@
         "node": ">= 8"
       }
     },
+    "node_modules/csvtojson": {
+      "version": "2.0.10",
+      "resolved": "https://registry.npmjs.org/csvtojson/-/csvtojson-2.0.10.tgz",
+      "integrity": "sha512-lUWFxGKyhraKCW8Qghz6Z0f2l/PqB1W3AO0HKJzGIQ5JRSlR651ekJDiGJbBT4sRNNv5ddnSGVEnsxP9XRCVpQ==",
+      "dependencies": {
+        "bluebird": "^3.5.1",
+        "lodash": "^4.17.3",
+        "strip-bom": "^2.0.0"
+      },
+      "bin": {
+        "csvtojson": "bin/csvtojson"
+      },
+      "engines": {
+        "node": ">=4.0.0"
+      }
+    },
+    "node_modules/csvtojson/node_modules/strip-bom": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
+      "integrity": "sha512-kwrX1y7czp1E69n2ajbG65mIo9dqvJ+8aBQXOGVxqwvNbsXdFM6Lq37dLAY3mknUwru8CfcCbfOLL/gMo+fi3g==",
+      "dependencies": {
+        "is-utf8": "^0.2.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/dateformat": {
       "version": "4.6.3",
       "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-4.6.3.tgz",
@@ -4481,6 +4975,14 @@
         "npm": "1.2.8000 || >= 1.4.16"
       }
     },
+    "node_modules/detect-libc": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.0.3.tgz",
+      "integrity": "sha512-bwy0MGW55bG41VqxxypOsdSdGqLwXPI/focwgTYCFMbdUiBAxLg9CFzG08sz2aqzknwiX7Hkl0bQENjg8iLByw==",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/detect-newline": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/detect-newline/-/detect-newline-3.1.0.tgz",
@@ -5707,6 +6209,11 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/is-utf8": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/is-utf8/-/is-utf8-0.2.1.tgz",
+      "integrity": "sha512-rMYPYvCzsXywIsldgLaSoPlw5PfoB/ssr7hY4pLfcodrA5M/eArza1a9VmTiNIBNMjOGr1Ow9mTyU2o69U6U9Q=="
+    },
     "node_modules/isexe": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@@ -6366,7 +6873,6 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
       "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
-      "dev": true,
       "dependencies": {
         "argparse": "^2.0.1"
       },
@@ -6491,6 +6997,11 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+    },
     "node_modules/lodash.merge": {
       "version": "4.6.2",
       "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",
@@ -7726,7 +8237,6 @@
       "version": "7.6.2",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.2.tgz",
       "integrity": "sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==",
-      "dev": true,
       "bin": {
         "semver": "bin/semver.js"
       },
@@ -7810,6 +8320,45 @@
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
       "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
     },
+    "node_modules/sharp": {
+      "version": "0.33.4",
+      "resolved": "https://registry.npmjs.org/sharp/-/sharp-0.33.4.tgz",
+      "integrity": "sha512-7i/dt5kGl7qR4gwPRD2biwD2/SvBn3O04J77XKFgL2OnZtQw+AG9wnuS/csmu80nPRHLYE9E41fyEiG8nhH6/Q==",
+      "hasInstallScript": true,
+      "dependencies": {
+        "color": "^4.2.3",
+        "detect-libc": "^2.0.3",
+        "semver": "^7.6.0"
+      },
+      "engines": {
+        "libvips": ">=8.15.2",
+        "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/libvips"
+      },
+      "optionalDependencies": {
+        "@img/sharp-darwin-arm64": "0.33.4",
+        "@img/sharp-darwin-x64": "0.33.4",
+        "@img/sharp-libvips-darwin-arm64": "1.0.2",
+        "@img/sharp-libvips-darwin-x64": "1.0.2",
+        "@img/sharp-libvips-linux-arm": "1.0.2",
+        "@img/sharp-libvips-linux-arm64": "1.0.2",
+        "@img/sharp-libvips-linux-s390x": "1.0.2",
+        "@img/sharp-libvips-linux-x64": "1.0.2",
+        "@img/sharp-libvips-linuxmusl-arm64": "1.0.2",
+        "@img/sharp-libvips-linuxmusl-x64": "1.0.2",
+        "@img/sharp-linux-arm": "0.33.4",
+        "@img/sharp-linux-arm64": "0.33.4",
+        "@img/sharp-linux-s390x": "0.33.4",
+        "@img/sharp-linux-x64": "0.33.4",
+        "@img/sharp-linuxmusl-arm64": "0.33.4",
+        "@img/sharp-linuxmusl-x64": "0.33.4",
+        "@img/sharp-wasm32": "0.33.4",
+        "@img/sharp-win32-ia32": "0.33.4",
+        "@img/sharp-win32-x64": "0.33.4"
+      }
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@@ -7852,6 +8401,19 @@
       "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==",
       "dev": true
     },
+    "node_modules/simple-swizzle": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.2.tgz",
+      "integrity": "sha512-JA//kQgZtbuY83m+xT+tXJkmJncGMTFT+C+g2h2R9uxkYIrE2yy9sgmcLhCnw57/WSD+Eh3J97FPEDFnbXnDUg==",
+      "dependencies": {
+        "is-arrayish": "^0.3.1"
+      }
+    },
+    "node_modules/simple-swizzle/node_modules/is-arrayish": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz",
+      "integrity": "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ=="
+    },
     "node_modules/simple-update-notifier": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/simple-update-notifier/-/simple-update-notifier-2.0.0.tgz",
diff --git a/package.json b/package.json
index 5e0432c..48b1dac 100644
--- a/package.json
+++ b/package.json
@@ -37,17 +37,20 @@
     "compression": "^1.7.4",
     "cors": "^2.8.5",
     "cross-env": "^7.0.3",
+    "csvtojson": "^2.0.10",
     "dotenv": "^16.4.5",
     "express": "^4.19.2",
     "helmet": "^7.1.0",
     "http-auth": "^4.2.0",
     "http-auth-passport": "^1.0.7",
+    "js-yaml": "^4.1.0",
     "markdown-it": "^14.1.0",
     "passport": "^0.7.0",
     "passport-http-bearer": "^1.0.1",
     "pino": "^9.0.0",
     "pino-http": "^10.1.0",
     "pino-pretty": "^11.0.0",
+    "sharp": "^0.33.4",
     "stoppable": "^1.1.0"
   }
 }
diff --git a/src/model/fragment.js b/src/model/fragment.js
index 7a8396b..e292faf 100644
--- a/src/model/fragment.js
+++ b/src/model/fragment.js
@@ -4,6 +4,11 @@ const { randomUUID } = require('crypto');
 // Use https://www.npmjs.com/package/content-type to create/parse Content-Type headers
 const contentType = require('content-type');
 const logger = require('../logger');
+const markdownit = require('markdown-it');
+const csv = require('csvtojson');
+const sharp = require('sharp');
+const yaml = require('js-yaml'); // Import js-yaml for JSON to YAML conversion
+const md = markdownit();
 
 // Functions for working with fragment metadata/data using our DB
 const {
@@ -145,16 +150,17 @@ class Fragment {
    */
   get formats() {
     const validConversions = {
-      'text/plain': ['text/plain'],
-      'text/markdown': ['text/markdown', 'text/html', 'text/plain'],
-      'text/html': ['text/html', 'text/plain'],
-      'text/csv': ['text/csv', 'text/plain', 'application/json'],
-      'application/json': ['application/json', 'text/plain'],
-      'image/png': ['image/png', 'image/jpeg', 'image/webp', 'image/gif', 'image/avif'],
-      'image/jpeg': ['image/png', 'image/jpeg', 'image/webp', 'image/gif', 'image/avif'],
-      'image/webp': ['image/png', 'image/jpeg', 'image/webp', 'image/gif', 'image/avif'],
-      'image/avif': ['image/png', 'image/jpeg', 'image/webp', 'image/gif', 'image/avif'],
-      'image/gif': ['image/png', 'image/jpeg', 'image/webp', 'image/gif', 'image/avif'],
+      'text/plain': ['.txt'],
+      'text/markdown': ['.md', '.html', '.txt'],
+      'text/html': ['.html', '.txt'],
+      'text/csv': ['.csv', '.txt', '.json'],
+      'application/json': ['.json', '.yaml', '.yml', '.txt'],
+      'application/yaml': ['.yaml', '.txt'],
+      'image/png': ['.png', '.jpg', '.webp', '.gif', '.avif'],
+      'image/jpeg': ['.png', '.jpg', '.webp', '.gif', '.avif'],
+      'image/webp': ['.png', '.jpg', '.webp', '.gif', '.avif'],
+      'image/avif': ['.png', '.jpg', '.webp', '.gif', '.avif'],
+      'image/gif': ['.png', '.jpg', '.webp', '.gif', '.avif'],
     };
     return validConversions[this.mimeType] || false;
   }
@@ -169,6 +175,89 @@ class Fragment {
     let arr = value.split(';');
     return validTypes.includes(arr[0].trim());
   }
+
+  async getConvertedInto(type) {
+    const fragmentData = await this.getData();
+    const fragmentType = this.type;
+
+    const conversions = {
+      'text/plain': {
+        '.txt': () => fragmentData,
+      },
+      'text/markdown': {
+        '.md': () => fragmentData,
+        '.html': () => md.render(fragmentData.toString('utf8')),
+        '.txt': () => fragmentData.toString('utf8'),
+      },
+      'text/html': {
+        '.html': () => fragmentData,
+        '.txt': () => fragmentData.toString('utf8'),
+      },
+      'text/csv': {
+        '.csv': () => fragmentData,
+        '.txt': () => fragmentData.toString('utf8'),
+        '.json': () =>
+          csv()
+            .fromString(fragmentData.toString('utf8'))
+            .then((jsonObj) => {
+              return jsonObj;
+            }),
+      },
+      'application/json': {
+        '.json': () => fragmentData,
+        '.yaml': () => yaml.dump(JSON.parse(fragmentData.toString('utf8'))),
+        '.yml': () => yaml.dump(JSON.parse(fragmentData.toString('utf8'))),
+        '.txt': () => fragmentData.toString('utf8'),
+      },
+      'application/yaml': {
+        '.yaml': () => fragmentData,
+        '.txt': () => fragmentData.toString('utf8'),
+      },
+      'image/png': {
+        '.png': async () => await sharp(fragmentData).png().toBuffer(),
+        '.jpg': async () => await sharp(fragmentData).jpeg().toBuffer(),
+        '.webp': async () => await sharp(fragmentData).webp().toBuffer(),
+        '.gif': async () => await sharp(fragmentData).gif().toBuffer(),
+        '.avif': async () => await sharp(fragmentData).avif().toBuffer(),
+      },
+      'image/jpeg': {
+        '.png': async () => await sharp(fragmentData).png().toBuffer(),
+        '.jpg': async () => await sharp(fragmentData).jpeg().toBuffer(),
+        '.webp': async () => await sharp(fragmentData).webp().toBuffer(),
+        '.gif': async () => await sharp(fragmentData).gif().toBuffer(),
+        '.avif': async () => await sharp(fragmentData).avif().toBuffer(),
+      },
+      'image/webp': {
+        '.webp': () => fragmentData,
+        '.png': async () => await sharp(fragmentData).png().toBuffer(),
+        '.jpg': async () => await sharp(fragmentData).jpeg().toBuffer(),
+        '.gif': async () => await sharp(fragmentData).gif().toBuffer(),
+        '.avif': async () => await sharp(fragmentData).avif().toBuffer(),
+      },
+      'image/avif': {
+        '.avif': () => fragmentData,
+        '.png': async () => await sharp(fragmentData).png().toBuffer(),
+        '.jpg': async () => await sharp(fragmentData).jpeg().toBuffer(),
+        '.webp': async () => await sharp(fragmentData).webp().toBuffer(),
+        '.gif': async () => await sharp(fragmentData).gif().toBuffer(),
+      },
+      'image/gif': {
+        '.gif': () => fragmentData,
+        '.png': async () => await sharp(fragmentData).png().toBuffer(),
+        '.jpg': async () => await sharp(fragmentData).jpeg().toBuffer(),
+        '.webp': async () => await sharp(fragmentData).webp().toBuffer(),
+        '.avif': async () => await sharp(fragmentData).avif().toBuffer(),
+      },
+    };
+
+    if (conversions[fragmentType] && conversions[fragmentType][type]) {
+      return await conversions[fragmentType][type]();
+      // return await sharp(fragmentData).jpeg().toBuffer();
+    }
+
+    throw new Error(`Unsupported conversion from ${fragmentType} to ${type}`);
+  }
+  // Convert fragment data into the received type.
 }
 
 module.exports.Fragment = Fragment;
diff --git a/src/routes/api/get.js b/src/routes/api/get.js
index 9761d40..6fdfd82 100644
--- a/src/routes/api/get.js
+++ b/src/routes/api/get.js
@@ -2,7 +2,6 @@
 const { createSuccessResponse, createErrorResponse } = require('../../response');
 const logger = require('../../logger');
 const { Fragment } = require('../../model/fragment');
-const markdownit = require('markdown-it');
 
 /**
  * Get a list of fragments for the current user
@@ -21,23 +20,25 @@ const getFragments = async (req, res) => {
 };
 
 const splitExtension = (id) => {
-  const mimeType = {
-    '.txt': 'text/plain',
-    '.md': 'text/markdown',
-    '.html': 'text/html',
-    '.csv': 'text/csv',
-    '.json': 'application/json',
-    '.png': 'image/png',
-    '.jpeg': 'image/jpeg',
-    '.webp': 'image/webp',
-    '.avif': 'image/avif',
-  };
   const arr = id.split('.');
-  const extension = arr[1] ? mimeType['.' + arr[1]] : '';
+  const extension = arr[1] ? '.' + arr[1] : null;
   // return extension and ID
   return { fragmentId: arr[0], extension: extension };
 };
-
+const mimeType = {
+  '.txt': 'text/plain',
+  '.md': 'text/markdown',
+  '.html': 'text/html',
+  '.csv': 'text/csv',
+  '.json': 'application/json',
+  '.yaml': 'application/yaml',
+  '.yml': 'application/yaml',
+  '.png': 'image/png',
+  '.jpg': 'image/jpeg',
+  '.webp': 'image/webp',
+  '.avif': 'image/avif',
+  '.gif': 'image/gif',
+};
 // Get fragment with passed fragmentID
 const getFragmentByID = async (req, res) => {
   // Get fragment ID send by user
@@ -55,18 +56,17 @@ const getFragmentByID = async (req, res) => {
     fragment = new Fragment(fragmentMetadata);
 
     if (extension) {
-      logger.debug(`Return fragment in type ${extension}`);
-
       if (fragment.formats.includes(extension)) {
-        const fragmentData = await fragment.getData();
-        if (fragment.mimeType == 'text/markdown' && extension == 'text/html') {
-          const md = markdownit();
-          const result = md.render(`${fragmentData}`);
-          res.status(200).type(extension).send(result);
+        logger.debug(`Return fragment in type ${extension}`);
+        try {
+          const fragmentData = await fragment.getConvertedInto(extension);
+          res.status(200).type(mimeType[extension]).send(fragmentData);
+          return;
+        } catch (err) {
+          logger.error({ err }, 'Error converting fragment');
+          res.status(415).json(createErrorResponse(415, err.message));
           return;
         }
-        res.status(200).type(fragment.mimeType).send(`${fragmentData}`);
-        return;
       } else {
         logger.error({ extension }, 'Unsupport extension demanded!');
         res
diff --git a/src/routes/api/put.js b/src/routes/api/put.js
index 06d55ae..ab89fc3 100644
--- a/src/routes/api/put.js
+++ b/src/routes/api/put.js
@@ -11,7 +11,7 @@ const updateFragment = async (req, res) => {
   const { type } = contentType.parse(req);
   const fragmentData = req.body;
   const ownerId = req.user;
-  logger.debug(`get fragment by ID ${id}`);
+  logger.debug(`update fragment by ID ${id}`);
 
   if (!Buffer.isBuffer(fragmentData)) {
     logger.warn({ type }, 'Trying to store unsupported fragment type!');