diff --git a/CHANGELOG.md b/CHANGELOG.md
index 613ce441..5c89e7e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 - Added `RequestEvent.Blob(status, contentType string, bytes)` response write helper ([#5940](https://github.com/pocketbase/pocketbase/discussions/5940)).
 
+- Added more descriptive error messages.
+
 
 ## v0.23.0
 
diff --git a/apis/record_auth_with_oauth2.go b/apis/record_auth_with_oauth2.go
index 9026daa4..1d37e331 100644
--- a/apis/record_auth_with_oauth2.go
+++ b/apis/record_auth_with_oauth2.go
@@ -175,7 +175,7 @@ type recordOAuth2LoginForm struct {
 
 func (form *recordOAuth2LoginForm) validate() error {
 	return validation.ValidateStruct(form,
-		validation.Field(&form.Provider, validation.Required, validation.By(form.checkProviderName)),
+		validation.Field(&form.Provider, validation.Required, validation.Length(0, 100), validation.By(form.checkProviderName)),
 		validation.Field(&form.Code, validation.Required),
 		validation.Field(&form.RedirectURL, validation.Required),
 	)
@@ -186,7 +186,7 @@ func (form *recordOAuth2LoginForm) checkProviderName(value any) error {
 
 	_, ok := form.collection.OAuth2.GetProviderConfig(name)
 	if !ok {
-		return validation.NewError("validation_invalid_provider", fmt.Sprintf("Provider with name %q is missing or is not enabled.", name)).
+		return validation.NewError("validation_invalid_provider", "Provider with name {{.name}} is missing or is not enabled.").
 			SetParams(map[string]any{"name": name})
 	}
 
diff --git a/core/collection_model_auth_options.go b/core/collection_model_auth_options.go
index 8dce2d4c..a0198d06 100644
--- a/core/collection_model_auth_options.go
+++ b/core/collection_model_auth_options.go
@@ -445,7 +445,7 @@ func checkForDuplicatedProviders(value any) error {
 		if _, ok := existing[c.Name]; ok {
 			return validation.Errors{
 				strconv.Itoa(i): validation.Errors{
-					"name": validation.NewError("validation_duplicated_provider", "The provider "+c.Name+" is already registered.").
+					"name": validation.NewError("validation_duplicated_provider", "The provider {{.name}} is already registered.").
 						SetParams(map[string]any{"name": c.Name}),
 				},
 			}
@@ -493,7 +493,7 @@ func checkProviderName(value any) error {
 	}
 
 	if _, err := auth.NewProviderByName(name); err != nil {
-		return validation.NewError("validation_missing_provider", "Invalid or missing provider with name "+name+".").
+		return validation.NewError("validation_missing_provider", "Invalid or missing provider with name {{.name}}.").
 			SetParams(map[string]any{"name": name})
 	}
 
diff --git a/core/collection_record_table_sync.go b/core/collection_record_table_sync.go
index 7eda8a82..6a42ae11 100644
--- a/core/collection_record_table_sync.go
+++ b/core/collection_record_table_sync.go
@@ -349,9 +349,7 @@ func createCollectionIndexes(app App, collection *Collection) error {
 				errs[strconv.Itoa(i)] = validation.NewError(
 					"validation_invalid_index_expression",
 					fmt.Sprintf("Failed to create index %s - %v.", parsed.IndexName, err.Error()),
-				).SetParams(map[string]any{
-					"indexName": parsed.IndexName,
-				})
+				)
 				continue
 			}
 		}
diff --git a/core/collection_validate.go b/core/collection_validate.go
index d4e1da65..12ad7aad 100644
--- a/core/collection_validate.go
+++ b/core/collection_validate.go
@@ -268,7 +268,7 @@ func (validator *collectionValidator) checkFieldDuplicates(value any) error {
 				strconv.Itoa(i): validation.Errors{
 					"name": validation.NewError(
 						"validation_duplicated_field_name",
-						fmt.Sprintf("Duplicated or invalid field name %q", field.GetName()),
+						"Duplicated or invalid field name {{.fieldName}}",
 					).SetParams(map[string]any{
 						"fieldName": field.GetName(),
 					}),
@@ -452,12 +452,12 @@ func (cv *collectionValidator) checkFieldsForUniqueIndex(value any) error {
 	for _, name := range names {
 		field := cv.new.Fields.GetByName(name)
 		if field == nil {
-			return validation.NewError("validation_missing_field", fmt.Sprintf("Invalid or missing field %q", name)).
+			return validation.NewError("validation_missing_field", "Invalid or missing field {{.fieldName}}").
 				SetParams(map[string]any{"fieldName": name})
 		}
 
 		if !dbutils.HasSingleColumnUniqueIndex(name, cv.new.Indexes) {
-			return validation.NewError("validation_missing_unique_constraint", fmt.Sprintf("The field %q doesn't have a UNIQUE constraint.", name)).
+			return validation.NewError("validation_missing_unique_constraint", "The field {{.fieldName}} doesn't have a UNIQUE constraint.").
 				SetParams(map[string]any{"fieldName": name})
 		}
 	}
@@ -566,7 +566,7 @@ func (cv *collectionValidator) checkIndexes(value any) error {
 			return validation.Errors{
 				strconv.Itoa(i): validation.NewError(
 					"validation_existing_index_name",
-					"The index name is already used in "+usedTblName+" collection.",
+					"The index name is already used in {{.usedTableName}} collection.",
 				).SetParams(map[string]any{"usedTableName": usedTblName}),
 			}
 		}
@@ -649,7 +649,7 @@ func (cv *collectionValidator) checkIndexes(value any) error {
 					if !hasMatch {
 						return validation.NewError(
 							"validation_invalid_unique_system_field_index",
-							fmt.Sprintf("Unique index definition on system fields (%q) is invalid or missing.", f.GetName()),
+							"Unique index definition on system fields ({{.fieldName}}) is invalid or missing.",
 						).SetParams(map[string]any{"fieldName": f.GetName()})
 					}
 
@@ -669,7 +669,7 @@ func (cv *collectionValidator) checkIndexes(value any) error {
 			if !dbutils.HasSingleColumnUniqueIndex(name, indexes) {
 				return validation.NewError(
 					"validation_missing_required_unique_index",
-					`Missing required unique index for field "`+name+`".`,
+					`Missing required unique index for field "{{.fieldName}}".`,
 				).SetParams(map[string]any{"fieldName": name})
 			}
 		}
diff --git a/core/db.go b/core/db.go
index d63fe028..0aee4291 100644
--- a/core/db.go
+++ b/core/db.go
@@ -464,7 +464,7 @@ func validateCollectionId(app App, optTypes ...string) validation.RuleFunc {
 			return validation.NewError(
 				"validation_invalid_collection_type",
 				fmt.Sprintf("Invalid collection type - must be %s.", strings.Join(optTypes, ", ")),
-			).SetParams(map[string]any{"types": optTypes})
+			)
 		}
 
 		return nil
diff --git a/core/field_editor.go b/core/field_editor.go
index 5d3738fc..1a023a82 100644
--- a/core/field_editor.go
+++ b/core/field_editor.go
@@ -2,7 +2,6 @@ package core
 
 import (
 	"context"
-	"fmt"
 
 	validation "github.com/go-ozzo/ozzo-validation/v4"
 	"github.com/pocketbase/pocketbase/core/validators"
@@ -137,7 +136,7 @@ func (f *EditorField) ValidateValue(ctx context.Context, app App, record *Record
 	if int64(len(val)) > maxSize {
 		return validation.NewError(
 			"validation_content_size_limit",
-			fmt.Sprintf("The maximum allowed content size is %v bytes", maxSize),
+			"The maximum allowed content size is {{.maxSize}} bytes",
 		).SetParams(map[string]any{"maxSize": maxSize})
 	}
 
diff --git a/core/field_file.go b/core/field_file.go
index ec3ea269..2ef1b4e1 100644
--- a/core/field_file.go
+++ b/core/field_file.go
@@ -250,13 +250,22 @@ func (f *FileField) ValidateValue(ctx context.Context, app App, record *Record)
 	addedStrings := f.excludeFiles(existingStrings, oldExistingStrings)
 
 	if len(addedStrings) > 0 {
-		return validation.NewError("validation_invalid_file", "Invalid files:"+strings.Join(cast.ToStringSlice(addedStrings), ", ")).
-			SetParams(map[string]any{"invalidFiles": addedStrings})
+		invalidFiles := make([]string, len(addedStrings))
+		for i, invalid := range addedStrings {
+			invalidStr := cast.ToString(invalid)
+			if len(invalidStr) > 250 {
+				invalidStr = invalidStr[:250]
+			}
+			invalidFiles[i] = invalidStr
+		}
+
+		return validation.NewError("validation_invalid_file", "Invalid new files: {{.invalidFiles}}.").
+			SetParams(map[string]any{"invalidFiles": invalidFiles})
 	}
 
 	maxSelect := f.maxSelect()
 	if len(files) > maxSelect {
-		return validation.NewError("validation_too_many_files", fmt.Sprintf("The maximum allowed files is %d", maxSelect)).
+		return validation.NewError("validation_too_many_files", "The maximum allowed files is {{.maxSelect}}").
 			SetParams(map[string]any{"maxSelect": maxSelect})
 	}
 
diff --git a/core/field_json.go b/core/field_json.go
index 27f047c8..a72786af 100644
--- a/core/field_json.go
+++ b/core/field_json.go
@@ -2,7 +2,6 @@ package core
 
 import (
 	"context"
-	"fmt"
 	"slices"
 	"strconv"
 	"strings"
@@ -160,7 +159,7 @@ func (f *JSONField) ValidateValue(ctx context.Context, app App, record *Record)
 	if int64(len(raw)) > maxSize {
 		return validation.NewError(
 			"validation_json_size_limit",
-			fmt.Sprintf("The maximum allowed JSON size is %v bytes", maxSize),
+			"The maximum allowed JSON size is {{.maxSize}} bytes",
 		).SetParams(map[string]any{"maxSize": maxSize})
 	}
 
diff --git a/core/field_relation.go b/core/field_relation.go
index 3c903000..54d6f350 100644
--- a/core/field_relation.go
+++ b/core/field_relation.go
@@ -3,7 +3,6 @@ package core
 import (
 	"context"
 	"database/sql/driver"
-	"fmt"
 
 	validation "github.com/go-ozzo/ozzo-validation/v4"
 	"github.com/pocketbase/dbx"
@@ -202,13 +201,13 @@ func (f *RelationField) ValidateValue(ctx context.Context, app App, record *Reco
 	}
 
 	if f.MinSelect > 0 && len(ids) < f.MinSelect {
-		return validation.NewError("validation_not_enough_values", fmt.Sprintf("Select at least %d", f.MinSelect)).
+		return validation.NewError("validation_not_enough_values", "Select at least {{.minSelect}}").
 			SetParams(map[string]any{"minSelect": f.MinSelect})
 	}
 
 	maxSelect := max(f.MaxSelect, 1)
 	if len(ids) > maxSelect {
-		return validation.NewError("validation_too_many_values", fmt.Sprintf("Select no more than %d", maxSelect)).
+		return validation.NewError("validation_too_many_values", "Select no more than {{.maxSelect}}").
 			SetParams(map[string]any{"maxSelect": maxSelect})
 	}
 
diff --git a/core/field_select.go b/core/field_select.go
index 07744088..e77eb38c 100644
--- a/core/field_select.go
+++ b/core/field_select.go
@@ -3,7 +3,6 @@ package core
 import (
 	"context"
 	"database/sql/driver"
-	"fmt"
 	"slices"
 
 	validation "github.com/go-ozzo/ozzo-validation/v4"
@@ -192,14 +191,14 @@ func (f *SelectField) ValidateValue(ctx context.Context, app App, record *Record
 
 	// check max selected items
 	if len(normalizedVal) > maxSelect {
-		return validation.NewError("validation_too_many_values", fmt.Sprintf("Select no more than %d", maxSelect)).
+		return validation.NewError("validation_too_many_values", "Select no more than {{.maxSelect}}").
 			SetParams(map[string]any{"maxSelect": maxSelect})
 	}
 
 	// check against the allowed values
 	for _, val := range normalizedVal {
 		if !slices.Contains(f.Values, val) {
-			return validation.NewError("validation_invalid_value", "Invalid value "+val).
+			return validation.NewError("validation_invalid_value", "Invalid value {{.value}}").
 				SetParams(map[string]any{"value": val})
 		}
 	}
diff --git a/core/field_text.go b/core/field_text.go
index bb49274a..7dc77a76 100644
--- a/core/field_text.go
+++ b/core/field_text.go
@@ -222,7 +222,7 @@ func (f *TextField) ValidatePlainValue(value string) error {
 	length := len([]rune(value))
 
 	if f.Min > 0 && length < f.Min {
-		return validation.NewError("validation_min_text_constraint", fmt.Sprintf("Must be at least %d character(s)", f.Min)).
+		return validation.NewError("validation_min_text_constraint", "Must be at least {{.min}} character(s)").
 			SetParams(map[string]any{"min": f.Min})
 	}
 
@@ -232,7 +232,7 @@ func (f *TextField) ValidatePlainValue(value string) error {
 	}
 
 	if max > 0 && length > max {
-		return validation.NewError("validation_max_text_constraint", fmt.Sprintf("Must be less than %d character(s)", max)).
+		return validation.NewError("validation_max_text_constraint", "Must be less than {{.max}} character(s)").
 			SetParams(map[string]any{"max": f.Max})
 	}
 
diff --git a/core/settings_model.go b/core/settings_model.go
index fd05b96e..df68cd82 100644
--- a/core/settings_model.go
+++ b/core/settings_model.go
@@ -639,7 +639,7 @@ func checkUniqueRuleLabel(value any) error {
 		if conflicts {
 			return validation.Errors{
 				strconv.Itoa(i): validation.Errors{
-					"label": validation.NewError("validation_conflicting_rate_limit_rule", "Rate limit rule configuration with label "+rule.Label+" already exists or conflicts with another rule.").
+					"label": validation.NewError("validation_conflicting_rate_limit_rule", "Rate limit rule configuration with label {{.label}} already exists or conflicts with another rule.").
 						SetParams(map[string]any{"label": rule.Label}),
 				},
 			}
diff --git a/core/validators/file.go b/core/validators/file.go
index 9e008c11..e3e556e9 100644
--- a/core/validators/file.go
+++ b/core/validators/file.go
@@ -29,7 +29,7 @@ func UploadedFileSize(maxBytes int64) validation.RuleFunc {
 		if v.Size > maxBytes {
 			return validation.NewError(
 				"validation_file_size_limit",
-				fmt.Sprintf("Failed to upload %q - the maximum allowed file size is %v bytes.", v.OriginalName, maxBytes),
+				"Failed to upload {{.file}} - the maximum allowed file size is {{.maxSize}} bytes.",
 			).SetParams(map[string]any{
 				"file":    v.OriginalName,
 				"maxSize": maxBytes,